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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2840310


Patent:US 2840310
Title:Reversible Counter Mechanism
Date:24.06.1958
Place:
Country:USA
Person:C. A. Christoff
Company:Clary (P)
Internal Links:Zähler
Keywords:
Link to the patent office:
(without guarantee)
 US2840310 (espacenet),  US2840310 (uspto)


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