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Patent:US1069104


Patent:US 1069104
Title:Calculating machine
Date:05.08.1913
Place:Muncie, Indiana und Wilkes-Barre, PA
Country:USA
Person:Bickford, Frank H. (P)
Company:Adder Machine Comp.
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Link to the patent office:
(without guarantee)
 US1069104 (espacenet),  US1069104 (uspto)


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