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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 806
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D. M. MANSON. PHONOGRAPH. APPLICATION FILED IAN. 24, 1916. Patented Nov. 28, 1916. 1,206,013. … ^, ^ „ ^ ^ ^ ^^ /V /, ^ ^ fr ^ s, ,, ,, ', , ,, ', s, /, , s,,, s, ,, , /, /,,///,* \ '2 13 \ i4 Y H FIG. 3 FIG. 4 WITNESSES INVENTOR Donald Milne AAanson. ATTYS.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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