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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US859552


Patent:US 859552
Title:Calculating Machine
Date:09.07.1907
Place:
Country:USA
Person:Ensign, Emory (P)
Company:
Internal Links:Ensign 75
Keywords:
Link to the patent office:
(without guarantee)
 US859552 (espacenet),  US859552 (uspto)


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Aus der Patentschrift US859552