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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US874107


Patent:US 874107
Title:Digit Repeating Mechanism for Adding Machines
Date:17.12.1907
Place:
Country:USA
Person:McFarland, Charles Numan (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US874107 (espacenet),  US874107 (uspto)


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Aus der Patentschrift US874107