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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1851401


Patent:US 1851401
Title:Calculating machine
Date:29.03.1932
Place:Berlin
Country:USA
Person:Münzer, Erich
Company:Tasma (P) Addiermaschinen GmbH
Internal Links:Tasma
Keywords:
Link to the patent office:
(without guarantee)
 US1851401 (espacenet),  US1851401 (uspto)


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US1851401 Fig. 1 - 3