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Patent:US1247954


Patent:US 1247954
Title:Calculating-machine
Date:27.11.1917
Place:Chemnitz
Country:USA
Person:Greve, John E. (P)
Company:Wanderer (P) Werke vorm. Winklhofer & Jaenicke AG
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Link to the patent office:
(without guarantee)
 US1247954 (espacenet),  US1247954 (uspto)


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