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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1816950


Patent:US 1816950
Title:Measuring Apparatus
Date:04.08.1931
Place:
Country:USA
Person:A. E. Young
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1816950 (espacenet),  US1816950 (uspto)


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Aus der Patentschrift US1816950