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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2288797


Patent:US 2288797
Title:Calculating Machine
Date:07.07.1942
Place:
Country:USA
Person:Fettig, Arthur (P)
Company:Burroughs (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2288797 (espacenet),  US2288797 (uspto)


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Aus der Patentschrift US2288797