Revision history of "File:Powers16.gif"

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  • (cur | prev) 10:59, 3 June 2017‎ Anton (talk | contribs)‎ . . (366 bytes) (+366)‎ . . (Powers Automatic Punching Machine (Census Model) THIS model designed for the United States government. Three hundred used in the compilation of the 1910 census. Automatically feeds and ejects cards. Gang punches repeated facts and makes one sort of the...)
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