Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 355
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/AME/YTOf?: THE NORRXS PETERS CO., PHOTOLITHO.. WASHINGTON. D 1,137,187. Witnesses J. J. COMER.RESONATOR. APPLICATION FILED JAN. 23, 1911. Patented Apr. 27,1915. 4 SHEETS—SHEET 3. … E/q. 6.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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