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Patent:US2838236


Patent:US 2838236
Title:Rotary Multiplying-Dividing Device
Date:10.06.1958
Place:
Country:USA
Person:G. De Changy
Company:Elec. De France
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2838236 (espacenet),  US2838236 (uspto)


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