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Patent:US2131908


Patent:US 2131908
Title:Multiplying machine
Date:04.10.1938
Place:Merrick NY und New York
Country:USA
Person:Torkelson, Torkel (P)
Company:IBM (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2131908 (espacenet),  US2131908 (uspto)


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