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Patent:US864455


Patent:US 864455
Title:Drawing Instrument
Date:27.08.1907
Place:
Country:USA
Person:J. Degen
Company:
Internal Links:Ellipsograph
Keywords:
Link to the patent office:
(without guarantee)
 US864455 (espacenet),  US864455 (uspto)


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Aus der Patentschrift US864455