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Patent:US2143741


Patent:US 2143741
Title:Shift device for calculating machines
Date:10.01.1939
Place:Zella-Mehlis und Benshausen
Country:USA
Person:Pott, August Friedrich (P)
Company:Mercedes (P) Büromaschinen-Werke AG
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Link to the patent office:
(without guarantee)
 US2143741 (espacenet),  US2143741 (uspto)


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