File:CalculatingMachinePatentBurroughs.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:11, 9 October 2006 | 838 × 1,200 (208 KB) | German | {{Information |Description=Drawing for a Calculating Machine, 08/21/1888. This is the printed patent drawing for a calculating machine invented by William S. Burroughs. From the National Archives. |Source=http://en.wikipedia.org/wiki/Image:CalculatingMa |
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