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Patent:US3217985


Patent:US 3217985
Title:Calculating machines
Date:16.11.1965
Place:Berlin
Country:USA
Person:Hornauer, Günter Spahr, Werner (P) Denzin, Horst (P) Denzin, Gerhard (P)
Company:Hamann (P) Rechenmaschinen GmbH
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Link to the patent office:
(without guarantee)
 US3217985 (espacenet),  US3217985 (uspto)


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