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Patent:US954869


Patent:US 954869
Title:Integrating Device
Date:12.04.1910
Place:
Country:USA
Person:H. L. Merrick
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US954869 (espacenet),  US954869 (uspto)


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Aus der Patentschrift US954869