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Patent:US1150916


Patent:US 1150916
Title:Calculating machine
Date:24.08.1915
Place:Kingston, PA und Wilkes-Barre
Country:USA
Person:Wilgus, Charles V. (P)
Company:Adder Machine Comp.
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Link to the patent office:
(without guarantee)
 US1150916 (espacenet),  US1150916 (uspto)


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