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Patent:USD180724


Patent:US D180724
Title:Calculating Machine
Date:30.07.1957
Place:
Country:USA
Person:Spillman, Engel, Hollerith, Hermann (P)
Company:Monroe (P)
Internal Links:Monroe Mach1.07
Keywords:
Link to the patent office:
(without guarantee)
 USD180724 (espacenet),  USD180724 (uspto)


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