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Patent:US2452484


Patent:US 2452484
Title:Ellipsograph
Date:26.10.1948
Place:
Country:USA
Person:Noble Kenneth B
Company:
Internal Links:Ellipsograph
Keywords:
Link to the patent office:
(without guarantee)
 US2452484 (espacenet),  US2452484 (uspto)


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Aus der Patentschrift US2452484