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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 454
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J. A. SOLER. GRAPHOPHONE ATTACHMENT. APPLICATION PILED OCT. 24, 1908. Patented Aug. 29, 1911. 1,001,780. -J-%?^ j&~ … 7Zl/*?'SZ'^<!?7' SByPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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