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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US902125


Patent:US 902125
Title:Printing eliminating device for adding machines
Date:27.10.1908
Place:Cleveland und Kingston, PA
Country:USA
Person:Wales, Charles (P)
Company:Adder Machine Comp.
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Link to the patent office:
(without guarantee)
 US902125 (espacenet),  US902125 (uspto)


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