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Patent:US184493


Patent:US 184493
Title:Ellipso-Pantograph
Date:21.11.1876
Place:
Country:USA
Person:A. Anderson
Company:
Internal Links:Ellipsograph
Keywords:
Link to the patent office:
(without guarantee)
 US184493 (espacenet),  US184493 (uspto)


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Aus der Patentschrift US184493