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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2243150


Patent:US 2243150
Title:Calculating machine
Date:27.05.1941
Place:Chemnitz und Siegmar-Schönau
Country:USA
Person:Hinrich Honrad Friedrich Ewald Hermann Karl Ehring
Company:Wanderer (P) Werke vorm. Winklhofer und Jaenicke
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Link to the patent office:
(without guarantee)
 US2243150 (espacenet),  US2243150 (uspto)


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