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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 819
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1,264,268. C. S. BURTON.PHONOGRAPH. APPLICATION FILED JAN. 29. 1917. Patented Apr. 30,1918. 2 SHEETS-SHEET 2. 0 f- <kPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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