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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1415601


Patent:US 1415601
Title:Correction Mechanism for Integrating Devices
Date:09.05.1922
Place:
Country:USA
Person:E. Meitner
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 US1415601 (espacenet),  US1415601 (uspto)


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Aus der Patentschrift US1415601