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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 cards without additional operation. From advertising brochure Powers accounting and Tabulating Machines, c. 1913.
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| current | 10:59, 3 June 2017 | | 298 × 412 (48 KB) | Anton (talk | contribs) | 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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