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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US3112873


Patent:US 3112873
Title:Key Responsive Ten Key Calculator With Unitary Indicating and Limiting Mechanism
Date:03.12.1963
Place:
Country:USA
Person:Caspari
Company:Burroughs (P)
Internal Links: improved indexing and amount indicating
Keywords:
Link to the patent office:
(without guarantee)
 US3112873 (espacenet),  US3112873 (uspto)


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