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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2441426


Patent:US 2441426
Title:Calculating Device
Date:11.05.1948
Place:
Country:USA
Person:Lichter, M. H. (P)
Company:
Internal Links:Datumsrechner
Keywords:
Link to the patent office:
(without guarantee)
 US2441426 (espacenet),  US2441426 (uspto)


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Aus der Patentschrift US2441426