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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2445008


Patent:US 2445008
Title:Calculator
Date:13.07.1948
Place:
Country:USA
Person:Arnold Smidt
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2445008 (espacenet),  US2445008 (uspto)


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Aus der Patentschrift US2445008