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Patent:US1369958


Patent:US 1369958
Title:Calculating Machine
Date:01.03.1921
Place:Newark, NJ
Country:USA
Person:Blaustein, Joseph
Company:Controller Comp., Inc.
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Keywords:
Link to the patent office:
(without guarantee)
 US1369958 (espacenet),  US1369958 (uspto)


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Aus der Patentschrift US1369958