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Patent:USD189942


Patent:US D189942
Title:Calculating Machine
Date:21.03.1961
Place:
Country:USA
Person:Hollerith, Hermann (P) et al
Company:Monroe (P)
Internal Links:Monroe Mach 1.07
Keywords:
Link to the patent office:
(without guarantee)
 USD189942 (espacenet),  USD189942 (uspto)


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