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Patent:US2675961


Patent:US 2675961
Title:Electric Calculating Machine
Date:20.04.1954
Place:
Country:USA
Person:Valdemar Larsen Fridthiof Oska
Company:Duba Ab
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2675961 (espacenet),  US2675961 (uspto)


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Aus der Patentschrift US2675961