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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2301033


Patent:US 2301033
Title:Calculating Device
Date:03.11.1942
Place:
Country:USA
Person:A. C. Findlay
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2301033 (espacenet),  US2301033 (uspto)


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Aus der Patentschrift US2301033