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Title: Hand key punching machine, model 15, no.11512, 45 column [Go to resource]
Description: Hand key punching machine, model 15, no.11512, 45 column License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Hollerith (maker) Identifier: 1939-398 Go to resource More Like this...
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