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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US3473732


Patent:US 3473732
Title:Calculator
Date:21.10.1969
Place:
Country:USA
Person:Kato
Company:
Internal Links:Analogrechner
Keywords:
Link to the patent office:
(without guarantee)
 US3473732 (espacenet),  US3473732 (uspto)


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Aus der Patentschrift US3473732

analog device with side cranks and cylindrical readout wheels