Category:Optical mark cards
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See also category: Punch cards.English: Optical mark cards, also known as electrographic cards, optical scan cards, Mark sense cards: paper cards on which written marks, rather than holes, are used to communicate the information
Media in category "Optical mark cards"
The following 2 files are in this category, out of 2 total.
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HP Educational Basic optical mark-reader card. Godfrey Manning..jpg 890 × 402; 431 KB
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Claire Schultz IBM punch card 98.06 recto.tif 4,508 × 2,024, 2 pages; 26.13 MB
