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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 84
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E. M. TURNER. PHONOGRAPH. APPLICATION FILED DEO. 27, 1909. Patented Jan. 31, 1911. 983,183. 3 SHEET8-SHEET 3. … 9m»«ntot Efi ofet S^^dl^f^^ &ttOt-n4^0 CU^. ETERS CO., WASHINGTON, D. C.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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