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Patent:US2193885


Patent:US 2193885
Title:Music Chart
Date:19.03.1940
Place:
Country:USA
Person:L. S. Riley
Company:
Internal Links:Musik
Keywords:
Link to the patent office:
(without guarantee)
 US2193885 (espacenet),  US2193885 (uspto)


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Aus der Patentschrift US2193885