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Patent:US2057400


Patent:US 2057400
Title:Algebraic totalizer
Date:13.10.1936
Place:Bridgeport, CT und New York
Country:USA
Person:Sundstrand, Oscar (P)
Company:Underwood Elliott-Fisher (P) Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US2057400 (espacenet),  US2057400 (uspto)


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