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Title: Sorter 45 colmn round hole (mechanical) c [Go to resource]
Description: Sorter 45 colmn round hole (mechanical) c.1920 (speed 400 cards/minute) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1920 Source: Science Museum Creator: Hollerith (maker) Identifier: 1974-557 Go to resource More Like this...
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