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Patent:US1911733


Patent:US 1911733
Title:Calculating machine
Date:30.05.1933
Place:Braunschweig, Deutschland
Country:USA
Person:Wernecke, Otto (P)
Company:Brunsviga (P)-Maschinen-Werke Grimme, Natalis & Co., AG
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(without guarantee)
 US1911733 (espacenet),  US1911733 (uspto)


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