Contents 1 History 2 Standards 3 Uses 3.1 Mobile operating systems 3.2 URLs 3.3 Virtual stores 3.4 Code payments 3.5 Website login 3.6 WiFi network login 3.7 Funerary use 3.8 Encryption 3.9 Video games 4 Design 4.1 Storage 4.2 Error correction 4.3 Encoding 4.4 Decoding example 5 Variants 5.1 Micro QR code 5.2 IQR code 5.3 SQRC 5.4 Frame QR 6 License 7 Risks 8 Extension 9 See also 10 References 11 Bibliography 12 External links

History[edit] The QR code system was invented in 1994 by the Japanese company Denso Wave. Its purpose was to track vehicles during manufacturing; it was designed to allow high-speed component scanning.[3] QR codes are now used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile-phone users (termed mobile tagging). QR codes may be used to display text to the user, to add a vCard contact to the user's device, to open a Uniform Resource Identifier (URI), or to compose an email or text message. There are a great many QR code generators available as software or as online tools.[4] The QR code has become one of the most-used types of two-dimensional code.[5]

Standards[edit] Structure of a QR code, highlighting functional elements There are several standards that cover the encoding of data as QR codes:[6] October 1997 – AIM (Association for Automatic Identification and Mobility) International[7] January 1999 – JIS X 0510 June 2000 – ISO/IEC 18004:2000 Information technology – Automatic identification and data capture techniques – Bar code symbology – QR code (now withdrawn) Defines QR code models 1 and 2 symbols. 1 September 2006 – ISO/IEC 18004:2006 Information technology – Automatic identification and data capture techniques – QR code 2005 bar code symbology specification (now withdrawn)[8] Defines QR code 2005 symbols, an extension of QR code model 2. Does not specify how to read QR code model 1 symbols, or require this for compliance. 1 February 2015 – ISO/IEC 18004:2015 Information – Automatic identification and data capture techniques – QR Code barcode symbology specification Renames the QR Code 2005 symbol to QR Code and adds clarification to some procedures and minor corrections. At the application layer, there is some variation between most of the implementations. Japan's NTT DoCoMo has established de facto standards for the encoding of URLs, contact information, and several other data types.[9] The open-source "ZXing" project maintains a list of QR code data types.[10]

Uses[edit] A QR code used on a large billboard in Japan, linking to the website QR codes have become common in consumer advertising. Typically, a smartphone is used as a QR code scanner, displaying the code and converting it to some useful form (such as a standard URL for a website, thereby obviating the need for a user to type it into a web browser). QR code has become a focus of advertising strategy, since it provides a way to access a brand's website more quickly than by manually entering a URL.[11][12] Beyond mere convenience to the consumer, the importance of this capability is that it increases the conversion rate (the chance that contact with the advertisement will convert to a sale), by coaxing interested prospects further down the conversion funnel with little delay or effort, bringing the viewer to the advertiser's website immediately, where a longer and more targeted sales pitch may lose the viewer's interest. Although initially used to track parts in vehicle manufacturing, QR codes are used over a much wider range of applications, including commercial tracking, entertainment and transport ticketing, product and loyalty marketing (examples: mobile couponing where a company's discounted and percent discount can be captured using a QR code decoder which is a mobile app, or storing a company's information such as address and related information alongside its alpha-numeric text data as can be seen in Yellow Pages directory), and in-store product labeling. It can also be used in storing personal information for use by organizations. An example of this is Philippines National Bureau of Investigation (NBI) where NBI clearances now come with a QR code. Many of these applications target mobile-phone users (via mobile tagging). Users may receive text, add a vCard contact to their device, open a URI, or compose an e-mail or text message after scanning QR codes. They can generate and print their own QR codes for others to scan and use by visiting one of several pay or free QR code-generating sites or apps. Google had an API, now deprecated, to generate QR codes,[13] and apps for scanning QR codes can be found on nearly all smartphone devices.[14] QR codes storing addresses and URLs may appear in magazines, on signs, on buses, on business cards, or on almost any object about which users might want information. Users with a camera phone equipped with the correct reader application can scan the image of the QR code to display text, contact information, connect to a wireless network, or open a web page in the telephone's browser. This act of linking from physical world objects is termed hardlinking or object hyperlinking. QR codes also may be linked to a location to track where a code has been scanned. Either the application that scans the QR code retrieves the geo information by using GPS and cell tower triangulation (aGPS) or the URL encoded in the QR code itself is associated with a location.[15] QR codes have been used and printed on train tickets in China since 2010.[16] In June 2011 The Royal Dutch Mint (Koninklijke Nederlandse Munt) issued the world's first official coin with a QR code to celebrate the centenary of its current building and premises. The coin can be scanned by a smartphone and link to a special website with contents about the historical event and design of the coin.[17] In 2014 the Central Bank of Nigeria issued a 100-naira banknote to commemorate its centennial, the first banknote to incorporate a QR code in its design. When scanned with an internet-enabled mobile device, the code goes to a website which tells the centenary story of Nigeria.[18] In 2015, the Central Bank of the Russian Federation issued a 100-rubles note to commemorate the annexation of Crimea by the Russian Federation. It contains a QR code into its design, and when scanned with an internet-enabled mobile device, the code goes to a website that details the historical and technical background of the commemorative note. In 2017, the Bank of Ghana issued a 5-cedis banknote to commemorate 60 years of Central Banking in Ghana, and contains a QR code in its design, which when scanned with an internet-enabled mobile device, that code goes to the official Bank of Ghana website. In 2008, a Japanese stonemason announced plans to engrave QR codes on gravestones, allowing visitors to view information about the deceased, and family members to keep track of visits.[19] Psychologist Richard Wiseman was one of the first authors to include QR codes in a book, in Paranormality: Why We See What Isn't There (2011).[20][not in citation given] On February 20, 2016, the Reserve Bank of India (RBI) will[needs update] launch the eponymously named Bharat QR, a common QR code jointly developed by all the four major card payment companies - National Payments Corporation of India that runs RuPay cards along with MasterCard, Visa and American Express. It will also have the capability of accepting payments on the unified payments interface (UPI) platform.[21][22] Mobile operating systems[edit] QR codes can be used on various mobile device operating systems. These devices support URL redirection, which allows QR codes to send metadata to existing applications on the device. Many paid or free apps are available with the ability to scan the codes and hard-link to an external URL. URLs[edit] URLs aided marketing conversion rates even in the pre-smartphone era, but during those years faced several limitations: ad viewers usually had to type the URL and often did not have a web browser in front of them when they first viewed the ad. The chances were high that they would forget to visit the site later, not bother to type a URL, or forget what URL to type. Semantic URLs decreased these risks but did not eliminate them. Some of these disadvantages to URL conversion rates are fading away now that smartphones are putting web access and voice recognition in constant reach, with QR code providing the URL for instant access. Virtual stores[edit] During the month of June 2011, according to one study, 14 million mobile users scanned a QR code or a barcode. Some 58% of those users scanned a QR or barcode from their homes, while 39% scanned from retail stores; 53% of the 14 million users were men between the ages of 18 and 34.[23] The use of QR codes for "virtual store" formats started in South Korea,[24] and Argentina,[25] but is currently expanding globally.[26] Walmart, Procter & Gamble and Woolworths have already adopted the Virtual Store concept.[27] Code payments[edit] QR codes can be used to store bank account information or credit card information, or they can be specifically designed to work with particular payment provider applications. There are several trial applications of QR code payments across the world.[28][29] In November 2012, QR code payments were deployed on a larger scale in the Czech Republic when an open format for payment information exchange - a Short Payment Descriptor - was introduced and endorsed by the Czech Banking Association as the official local solution for QR payments.[30] In 2013, the European Payment Council provided guidelines for the EPC QR code enabling SCT initiation within the Eurozone. QR codes are commonly used in the field of cryptographic currencies, particularly those based on and including Bitcoin.[31] Payment addresses, cryptographic keys and transaction information are often shared between digital wallets in this way.[32] Website login[edit] QR codes can be used to log into websites: a QR code is shown on the login page on a computer screen, and when a registered user scans it with a verified smartphone, they will automatically be logged in. Authentication is performed by the smartphone which contacts the server. Google tested such a login method in January 2012.[33] WiFi network login[edit] By specifying the SSID, encryption type, password/passphrase, and if the SSID is hidden or not, mobile device users can quickly scan and join networks without having to manually enter the data.[34] Note: This only specifies static SSID passwords (i.e. PSK), this does not encode dynamic user credentials (i.e. Enterprise/802.1x). The format of the encoded string is: WIFI:S:<SSID>;T:<WPA|WEP|>;P:<password>;H:<true|false|>; Order of fields does not matter. Special characters "", ";", "," and ":" should be escaped with a backslash ("") as in MECARD encoding. For example, if an SSID was literally "foo;bar\baz" (with double quotes part of the SSID name itself) then it would be encoded like: WIFI:S:\"foo\;bar\\baz\";;[35] As of January 2018 iPhones have this feature built into the camera app since iOS 11.x -- Android users can use the free app "Barcode Scanner" or "QR Droid" to perform the QR wifi join. The barcode scanner feature in Firefox for Android recognizes the data type as "WLAN login" but currently takes no action. Funerary use[edit] In 2008, Ishinokoe in Yamanashi Prefecture, Japan began to sell tombstones with QR codes produced by IT DeSign, where the code leads to a virtual grave site of the deceased.[36][37][38] Other companies, such as Wisconsin based Interactive Headstones, have begun implementing QR codes into tombstones.[39] In 2014 the Jewish Cemetery of La Paz in Uruguay, began implementing QR codes for tombstones.[40] Encryption[edit] Japanese immigration landing permission with a QR code at the bottom. The QR code content is encrypted. Encrypted QR codes, which are not very common, have a few applications. For example, there is an Android app,[41] that manages encryption and decryption of QR codes using the Data Encryption Standard algorithm.[42] The Japanese immigration system usage of encrypted QR codes on landing permission stamps in passports, is another example.[43][44] Video games[edit] Popular video games, such as Fez and The Talos Principle, have incorporated QR codes as story and/or gameplay elements.[45][46]

Design[edit] Unlike the older, one-dimensional barcodes that were designed to be mechanically scanned by a narrow beam of light, a QR code is detected by a 2-dimensional digital image sensor and then digitally analyzed by a programmed processor. The processor locates the three distinctive squares at the corners of the QR code image, using a smaller square (or multiple squares) near the fourth corner to normalize the image for size, orientation, and angle of viewing. The small dots throughout the QR code are then converted to binary numbers and validated with an error-correcting algorithm. Storage[edit] The amount of data that can be stored in the QR code symbol depends on the datatype (mode, or input character set), version (1, …, 40, indicating the overall dimensions of the symbol), and error correction level. The maximum storage capacities occur for 40-L symbols (version 40, error correction level L):[5][47] Maximum character storage capacity (40-L) character refers to individual values of the input mode/datatype Input mode Max. characters Bits/char. Possible characters, default encoding Numeric only 7,089 3⅓ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Alphanumeric 4,296 5½ 0–9, A–Z (upper-case only), space, $, %, *, +, -, ., /, : Binary/byte 2,953 8 ISO 8859-1 Kanji/kana 1,817 13 Shift JIS X 0208 Here are some sample QR code symbols: Version 1 (21×21). Content: "Ver1" Version 2 (25×25). Content: "Version 2" Version 3 (29×29). Content: "Version 3 QR Code" Version 4 (33×33). Content: "Version 4 QR Code, up to 50 char" Version 10 (57×57). Content: "Version 10 QR Code, up to 174 char at H level, with 57X57 modules and plenty of Error-Correction to go around. Note that there are additional tracking boxes" Version 25 (117×117 enlarged to 640x640) Version 40 (177×177). Content: 1,264 characters of ASCII text describing QR codes Error correction[edit] Damaged but still decodable QR code, Link to Example of a QR code with artistic embellishment that will still scan correctly thanks to error correction Codewords are 8 bits long and use the Reed–Solomon error correction algorithm with four error correction levels. The higher the error correction level, the less storage capacity. The following table lists the approximate error correction capability at each of the four levels: Level L (Low) 7% of codewords can be restored. Level M (Medium) 15% of codewords can be restored. Level Q (Quartile)[48] 25% of codewords can be restored. Level H (High) 30% of codewords can be restored. In larger QR symbols, the message is broken up into several Reed–Solomon code blocks. The block size is chosen so that at most 15 errors can be corrected in each block; this limits the complexity of the decoding algorithm. The code blocks are then interleaved together, making it less likely that localized damage to a QR symbol will overwhelm the capacity of any single block. Due to error correction, it is possible to create artistic QR codes that still scan correctly, but contain intentional errors to make them more readable or attractive to the human eye, as well as to incorporate colors, logos, and other features into the QR code block.[49][50] It is also possible to design artistic QR codes without reducing the error correction capacity by manipulating the underlying mathematical constructs.[51][52] Encoding[edit] The format information records two things: the error correction level and the mask pattern used for the symbol. Masking is used to break up patterns in the data area that might confuse a scanner, such as large blank areas or misleading features that look like the locator marks. The mask patterns are defined on a grid that is repeated as necessary to cover the whole symbol. Modules corresponding to the dark areas of the mask are inverted. The format information is protected from errors with a BCH code, and two complete copies are included in each QR symbol.[2] The message dataset is placed from right to left in a zigzag pattern, as shown below. In larger symbols, this is complicated by the presence of the alignment patterns and the use of multiple interleaved error-correction blocks. Meaning of format information Message placement within a QR symbol Larger symbol illustrating interleaved blocks The general structure of a QR encoding is as a sequence of 4 bit indicators with payload length dependent on the indicator mode (e.g. byte encoding payload length is dependent on the first byte).[53] Mode indicator Description Typical structure '[ type : sizes in bits ]' 0001 Numeric [0001 : 4] [ Character Count Indicator : variable ] [ Data Bit Stream : 10 × charcount ] 0010 Alphanumeric [0010 : 4] [ Character Count Indicator : variable ] [ Data Bit Stream : 11 × charcount ] 0100 Byte encoding [0100 : 4] [ Character Count Indicator : variable ] [ Data Bit Stream : 8 × charcount ] 1000 Kanji encoding [1000 : 4] [ Character Count Indicator : variable ] [ Data Bit Stream : 13 × charcount ] 0011 Structured append [0011 : 4] [ Symbol Position : 4 ] [ Total Symbols: 4 ] [ Parity : 8 ] 0111 ECI [0111 : 4] [ ECI Assignment number : variable ] 0101 FNC1 in first position [0101 : 4] [ Numeric/Alphanumeric/Byte/Kanji payload : variable ] 1001 FNC1 in second position [1001 : 4] [ Application Indicator : 8 ] [ Numeric/Alphanumeric/Byte/Kanji payload : variable ] 0000 End of message [0000 : 4] Note: Character Count Indicator depends on how many modules are in a QR code (Symbol Version). ECI Assignment number Size: 8 × 1 bits if ECI Assignement Bitstream starts with '0' 8 × 2 bits if ECI Assignement Bitstream starts with '10' 8 × 3 bits if ECI Assignement Bitstream starts with '110' Four-bit indicators are used to select the encoding mode and convey other information. Encoding modes Indicator Meaning 0001 Numeric encoding (10 bits per 3 digits) 0010 Alphanumeric encoding (11 bits per 2 characters) 0100 Byte encoding (8 bits per character) 1000 Kanji encoding (13 bits per character) 0011 Structured append (used to split a message across multiple QR symbols) 0111 Extended Channel Interpretation (select alternate character set or encoding) 0101 FNC1 in first position (see Code 128 for more information) 1001 FNC1 in second position 0000 End of message (Terminator) Encoding modes can be mixed as needed within a QR symbol. (e.g., a url with a long string of alphanumeric characters ) [ Mode Indicator][ Mode bitstream ] --> [ Mode Indicator][ Mode bitstream ] --> etc... --> [ 0000 End of message (Terminator) ] After every indicator that selects an encoding mode is a length field that tells how many characters are encoded in that mode. The number of bits in the length field depends on the encoding and the symbol version. Number of bits in a length field (Character Count Indicator) Encoding Ver. 1–9 10–26 27–40 Numeric 10 12 14 Alphanumeric 9 11 13 Byte 8 16 16 Kanji 8 10 12 Alphanumeric encoding mode stores a message more compactly than the byte mode can, but cannot store lower-case letters and has only a limited selection of punctuation marks, which are sufficient for rudimentary web addresses. Two characters are coded in an 11-bit value by this formula: V = 45 × C1 + C2 This has the exception that the last character in an alphanumeric string with an odd length is read as a 6-bit value instead. Alphanumeric character codes Code Character Code Character Code Character Code Character Code Character 00 0 09 9 18 I 27 R 36 Space 01 1 10 A 19 J 28 S 37 $ 02 2 11 B 20 K 29 T 38  % 03 3 12 C 21 L 30 U 39 * 04 4 13 D 22 M 31 V 40 + 05 5 14 E 23 N 32 W 41 – 06 6 15 F 24 O 33 X 42 . 07 7 16 G 25 P 34 Y 43 / 08 8 17 H 26 Q 35 Z 44  : Decoding example[edit] The following images offer more information about the QR code. 1 — Introduction 2 — Structure 3 — Layout & Encoding 4 — Levels & Masks 5 — Protocols

Variants[edit] Micro QR code[edit] Micro QR code is a smaller version of the QR code standard for applications where symbol size is limited. There are four different versions (sizes) of Micro QR codes: the smallest is 11×11 modules; the largest can hold 35 numeric characters.[54] IQR code[edit] IQR Code is an alternative to existing QR codes developed by Denso Wave. IQR codes can be created in square or rectangular formations; this is intended for situations where a rectangular barcode would otherwise be more appropriate, such as cylindrical objects. IQR codes can fit the same amount of information in 30% less space. There are 61 versions of square IQR codes, and 15 versions of rectangular codes. For squares, the minimum size is 9x9 modules; rectangles have a minimum of 19x5 modules. IQR codes add error correction level S, which allows for 50% error correction.[55] IQR Codes have not yet been given an ISO specification, and only proprietary Denso Wave products can create or read IQR codes.[56] SQRC[edit] SQRC is a type of QR code equipped with reading restricting function. This can be used to store private information and to manage company's internal information and the like.[57] Frame QR[edit] FrameQR is a QR code with a “canvas area” that can be flexibly used. In the center of this code is the canvas area, where graphics, letters, and more can be flexibly arranged, making it possible to lay out the code without losing the design of illustrations, photos, etc.[58] Model 1 QR code is an older version of the specification. It is visually similar to the widely seen model 2 codes, but lacks alignment patterns. Micro QR code example Micro QR code functional regions Model 1 QR code example Model 1 QR code functional regions

License[edit] The use of QR code technology is freely licensed as long as users follow the standards for QR Code documented with JIS or ISO. Non-standardized codes may require special licensing.[59] Denso Wave owns a number of patents on QR code technology, but has chosen to exercise them in a limited fashion.[59] In order to promote widespread usage of the technology Denso Wave chose to waive its rights to a key patent in its possession for standardized codes only.[6] In the USA, the granted QR code patent is US 5726435 , and in Japan JP 2938338 . The European Patent Office granted patent "EPO 0672994".  to Denso Wave, which was then validated into French, UK, and German patents, all of which expired in March 2015. [60] The text QR Code itself is a registered trademark and wordmark of Denso Wave Incorporated.[61] In UK, the trademark is registered as E921775, the word "QR Code", with a filing date of 03/09/1998.[62] The UK version of the trademark is based on the Kabushiki Kaisha Denso (DENSO CORPORATION) trademark, filed as Trademark 000921775, the word "QR Code", on 03/09/1998 and registered on 6/12/1999 with the European Union OHIM (Office for Harmonization in the Internal Market).[63] The U.S. Trademark for the word "QR Code" is Trademark 2435991 and was filed on 29 September 1998 with an amended registration date of 13 March 2001, assigned to Denso Corporation.[64]

Risks[edit] The only context in which common QR codes can carry executable data is the URL data type. These URLs may host JavaScript code, which can be used to exploit vulnerabilities in applications on the host system, such as the reader, the web browser or the image viewer, since a reader will typically send the data to the application associated with the data type used by the QR code. In the case of no software exploits, malicious QR codes combined with a permissive reader can still put a computer's contents and user's privacy at risk. This practice is known as "attagging", a portmanteau of "attack tagging".[65] They are easily created and can be affixed over legitimate QR codes.[66] On a smartphone, the reader's permissions may allow use of the camera, full Internet access, read/write contact data, GPS, read browser history, read/write local storage, and global system changes.[67][68][69] Risks include linking to dangerous web sites with browser exploits, enabling the microphone/camera/GPS, and then streaming those feeds to a remote server, analysis of sensitive data (passwords, files, contacts, transactions),[70] and sending email/SMS/IM messages or DDOS packets as part of a botnet, corrupting privacy settings, stealing identity,[71] and even containing malicious logic themselves such as JavaScript[72] or a virus.[73][74] These actions could occur in the background while the user is only seeing the reader opening a seemingly harmless web page.[75] In Russia, a malicious QR code caused phones that scanned it to send premium texts at a fee of US$6 each.[65]

Extension[edit] Samples of the High Capacity Colored 2-Dimensional (HCC2D) code: (a) 4-color HCC2D code and (b) 8-color HCC2D code. Researchers have proposed a new High Capacity Colored 2-Dimensional (HCC2D) Code, which builds upon a QR code basis for preserving the QR robustness to distortions and uses colors for increasing data density (at this stage it is still in prototyping phase). The HCC2D code specification is described in details in Querini et al. (2014),[76] while techniques for color classification of HCC2D code cells are described in detail in Querini and Italiano (2014),[77] which is an extended version of Querini and Italiano (2013).[78] Introducing colors into QR codes requires addressing additional issues. In particular, during QR code reading only the brightness information is taken into account, while HCC2D codes have to cope with chromatic distortions during the decoding phase. In order to ensure adaptation to chromatic distortions which arise in each scanned code, HCC2D codes make use of an additional field: the Color Palette Pattern. This is because color cells of a Color Palette Pattern are supposed to be distorted in the same way as color cells of the Encoding Region. Replicated color palettes are used for training machine learning classifiers.

See also[edit] CueCat QRpedia SnapTag SPARQCode Touchatag

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Bibliography[edit] BS ISO/IEC 18004:2006. Information technology. Automatic identification and data capture techniques. Bar code symbology. QR Code. Geneva: ISO/IEC. 2000. p. 114.  BS ISO/IEC 18004:2006. Information technology. Automatic identification and data capture techniques. QR Code 2005 bar code symbology specification. London: BSI. 2007. p. 126. ISBN 978-0-580-67368-9. 

External links[edit] Wikimedia Commons has media related to Quick Response Codes. Official website Reed Solomon Codes for Coders – an elaborate tutorial on Wikiversity, covering both QR code structure and the Reed Solomon codes used to encode the data. v t e Barcodes Linear barcodes Automatic Car Identification Code 11 Code 39 Code 93 Code 128 Codabar European Article Number GS1 DataBar ITF-14 Interleaved 2 of 5 MSI Barcode Patch Code Pharmacode Plessey Telepen UPC UPC-A MaxiCode Post office barcodes CPC Binary Barcode Facing Identification Mark PostBar POSTNET RM4SCC Intelligent Mail barcode PLANET 2D barcodes (stacked) GS1 DataBar PDF417 2D barcodes (matrix) Aztec Code Data Matrix (Semacode) MaxiCode QR code Polar coordinate barcodes MaxiCode ShotCode Other High Capacity Color Barcode (Microsoft Tag) Technological issues Barcode reader Barcode printer Other data tags RFID Bokode Related topics Supply Chain Management Object hyperlinking Matrix Mobile tagging CueCat v t e ISO standards by standard number List of ISO standards / ISO romanizations / IEC standards 1–9999 1 2 3 4 5 6 7 9 16 31 -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 128 216 217 226 228 233 259 269 302 306 428 518 519 639 -1 -2 -3 -5 -6 646 690 732 764 843 898 965 1000 1004 1007 1073-1 1413 1538 1745 1989 2014 2015 2022 2047 2108 2145 2146 2240 2281 2709 2711 2788 2848 2852 3029 3103 3166 -1 -2 -3 3297 3307 3602 3864 3901 3977 4031 4157 4217 4909 5218 5428 5775 5776 5800 5964 6166 6344 6346 6385 6425 6429 6438 6523 6709 7001 7002 7098 7185 7200 7498 7736 7810 7811 7812 7813 7816 8000 8178 8217 8571 8583 8601 8632 8652 8691 8807 8820-5 8859 -1 -2 -3 -4 -5 -6 -7 -8 -8-I -9 -10 -11 -12 -13 -14 -15 -16 8879 9000/9001 9075 9126 9293 9241 9362 9407 9506 9529 9564 9594 9660 9897 9899 9945 9984 9985 9995 10000–19999 10005 10006 10007 10116 10118-3 10160 10161 10165 10179 10206 10218 10303 -11 -21 -22 -28 -238 10383 10487 10585 10589 10646 10664 10746 10861 10957 10962 10967 11073 11170 11179 11404 11544 11783 11784 11785 11801 11898 11940 (-2) 11941 11941 (TR) 11992 12006 12182 12207 12234-2 13211 -1 -2 13216 13250 13399 13406-2 13450 13485 13490 13567 13568 13584 13616 14000 14031 14224 14289 14396 14443 14496 -2 -3 -6 -10 -11 -12 -14 -17 -20 14644 14649 14651 14698 14750 14764 14882 14971 15022 15189 15288 15291 15292 15398 15408 15444 -3 15445 15438 15504 15511 15686 15693 15706 -2 15707 15897 15919 15924 15926 15926 WIP 15930 16023 16262 16612-2 16750 16949 (TS) 17024 17025 17100 17203 17369 17442 17799 18000 18004 18014 18245 18629 18916 19005 19011 19092 (-1 -2) 19114 19115 19125 19136 19439 19500 19501 19502 19503 19505 19506 19507 19508 19509 19510 19600:2014 19752 19757 19770 19775-1 19794-5 19831 20000+ 20000 20022 20121 20400 21000 21047 21500 21827:2002 22000 23270 23271 23360 24517 24613 24617 24707 25178 25964 26000 26300 26324 27000 series 27000 27001 27002 27006 27729 28000 29110 29148 29199-2 29500 30170 31000 32000 38500 40500 42010 55000 80000 -1 -2 -3 Category Authority control LCCN: sh2012001140 GND: 7853424-0 NDL: 01014551 Retrieved from "" Categories: 1994 introductionsAutomatic identification and data captureBarcodesEncodingsHypermediaJapanese inventionsHidden categories: CS1 Dutch-language sources (nl)CS1 Spanish-language sources (es)CS1 Czech-language sources (cs)CS1 Japanese-language sources (ja)Webarchive template wayback linksAll articles with failed verificationArticles with failed verification from June 2017Wikipedia articles in need of updating from June 2017All Wikipedia articles in need of updatingUse dmy dates from August 2012Wikipedia articles with LCCN identifiersWikipedia articles with GND identifiers

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