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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1232066


Patent:US 1232066
Title:Calculating Device
Date:03.07.1917
Place:
Country:USA
Person:J. B. Moody
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1232066 (espacenet),  US1232066 (uspto)


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Aus der Patentschrift US1232066