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Patent:US825363


Patent:US 825363
Title:Calculating Machine
Date:10.07.1906
Place:Hellerup, Dänemark
Country:USA
Person:Vermehren, Johannes (P)
Company:
Internal Links:Planimeter, Analogrechner
Keywords:
Link to the patent office:
(without guarantee)
 US825363 (espacenet),  US825363 (uspto)


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