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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 858
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L. MORONEY, ATTACHMENT FOR TALKING MACHINES. APPLICATION FILED FEB. 6, 1917, Patented Nov. 20, 1917. 1,247,441. 3 SHEETS-SHEET t. i*-^- -" #&»,Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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