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Multilingual Demographic Dictionary, second unified edition, English volume
Difference between revisions of "Card verifier"
Multilingual Demographic Dictionary, second unified edition, English vol.
(Etienne van de Walle et al., second 1982 edition) |
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Revision as of 21:14, 15 October 2007
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Purely mechanical processing (220-4) did not involve the use of electronic equipment 1 which has come to replace the earlier tabulating machines 2 or unit record machines 2 and is much more versatile. More...