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Patent:US2300347


Patent:US 2300347
Title:Trigonometrical calculating device
Date:27.10.1942
Place:
Country:USA
Person:Dalton John T
Company:
Internal Links:Analogrechner
Keywords:
Link to the patent office:
(without guarantee)
 US2300347 (espacenet),  US2300347 (uspto)


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Aus der Patentschrift US2300347