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2. Code 39 - Wikipedia

   en.wikipedia.org/wiki/Code_39

   Code 39 (also known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3) is a variable length, discrete barcode symbology defined in ISO/IEC 16388:2007. The Code 39 specification defines 43 characters, consisting of uppercase letters (A through Z), numeric digits (0 through 9) and a number of special characters ...

3. File:Free 3 of 9 (Code 39 barcode).svg - Wikipedia

   en.wikipedia.org/wiki/File:Free_3_of_9_(Code_39...

   Moved characters a bit to have * clearly separated from the others (it's not a true character in Code 39). Déplacé quelques caractères pour mettre clairement * de côté (ce n'est pas un vrai caractère en Code 39) 21:11, 25 June 2010: 625 × 1,425 (82 KB) JoostyBoy: Last one, centered the space barcode symbol and its description. 21:09, 25 ...

4. Codablock - Wikipedia

   en.wikipedia.org/wiki/Codablock

   Codablock A barcode example Codablock-F barcode example. Codablock is a family of stacked 1D barcodes (Codablock A,. [1] Codablock F, [2] Codablock 256) which was invented in Identcode Systeme GmbH in Germany in 1989 [3] [4] by Heinrich Oehlmann. Codablock barcodes are based on stacked Code 39 and Code 128 symbologies and have some advantages ...

5. File:Barcode diagram.svg - Wikipedia

   en.wikipedia.org/wiki/File:Barcode_diagram.svg

   Pedantry: Make the markers at the top line up with the actual regions of the barcode. Change the bottom text to match the encoded data (note that the same pattern appears above each "i"). 22:04, 7 October 2009: 200 × 130 (28 KB) Addicted04

6. Interleaved 2 of 5 - Wikipedia

   en.wikipedia.org/wiki/Interleaved_2_of_5

   The purpose of a Bearer Bar is to equalize the pressure exerted by the printing plate over the entire surface of the symbol, and to enhance reading reliability by helping to reduce the probability of misreads occurring when the bar code is scanned at too large an angle so that the scanning beam crosses the top and/or bottom edge of the bar code ...

7. Electronic symbol - Wikipedia

   en.wikipedia.org/wiki/Electronic_symbol

   An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...