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Patent:US2719671


Patent:US 2719671
Title:Electrical calculating systems
Date:04.10.1955
Place:
Country:USA
Person:Valdemar Larsen Fridthiof Osca
Company:Duba Ab
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2719671 (espacenet),  US2719671 (uspto)


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Aus der Patentschrift US2719671