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Patent:US3003687


Patent:US 3003687
Title:Time Integrating System
Date:10.10.1961
Place:
Country:USA
Person:C. C. Bell
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US3003687 (espacenet),  US3003687 (uspto)


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Aus der Patentschrift US3003687