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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1058148


Patent:US 1058148
Title:Calculating Instrument
Date:08.04.1913
Place:
Country:USA
Person:W. S. Buvinger
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US1058148 (espacenet),  US1058148 (uspto)


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Aus der Patentschrift US1058148