Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 552
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(No Model.) 3 Sheets—Sheet 2. F. S. CHURCH. COIN CONTROLLED PHONOGRAPH. No. 529,019. Patented Nov. 13, 1894. … SB yPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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