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Title: Powers-Samas Accounting Machines [Go to resource]
Description: Powers-Samas Service Manual for punched card machinery License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Service Manual Temporal: 1951 Source: Science Museum Creator: Powers-Samas Machines Limited Identifier: 2000-1135 Go to resource More Like this...
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