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Patent:US1607537


Patent:US 1607537
Title:Integrator
Date:16.11.1926
Place:
Country:USA
Person:J. L. Hodgson
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US1607537 (espacenet),  US1607537 (uspto)


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Aus der Patentschrift US1607537