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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 64
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No. 657,956. Patented Sept. 18, 1900. A. N. PETIT. GRAPHOPHONE CYLINDER. (Application filed Nov. 15, 1889.1 (No Model.) W ^ 1^ f^ … i PErcRS CO. pmoto-utho,.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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