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Patent:US575105


Patent:US 575105
Title:Planimeter
Date:12.01.1897
Place:
Country:USA
Person:B. E. Chollar
Company:
Internal Links:Planimeter, Schneidenplanimeter
Keywords:Prytz, Hatchet
Link to the patent office:
(without guarantee)
 US575105 (espacenet),  US575105 (uspto)


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Aus der Patentschrift US575105