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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 390
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L. T. HAILE. SOUND BEPBODUOING MACHINE. APPLIOATIOH FILED JAH. 29, 1909. Patented June 8, 1909. 924,456. … IIHGTON, D CPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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