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Patent:US1785525


Patent:US 1785525
Title:Integrator and Recorder
Date:16.12.1930
Place:
Country:USA
Person:M. Morrison
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US1785525 (espacenet),  US1785525 (uspto)


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Aus der Patentschrift US1785525