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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US3045907


Patent:US 3045907
Title:Calculating Machine
Date:24.07.1962
Place:
Country:USA
Person:Malavazos
Company:Friden (P)
Internal Links:Rückübertragung
Keywords:
Link to the patent office:
(without guarantee)
 US3045907 (espacenet),  US3045907 (uspto)


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Aus der Patentschrift US3045907

Friden with register below keyboard, back transfer, storage register, ref to Patent:US2229889 as basics of machine