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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 875
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^GJ§a George tt. t/r^cle^Tt^^Zt. 1,265,009, G. H. UNDERHILL PHONOGRAPH,APPLICATION FILED APR. 29. 1911. Patented May 7,1918. 9 SHEETS-SHEET 8. … 1,265,009. G. H. UNDERHILL. PHONOGRAPH.APPLICATION FILED APR. 29, 1911. Patented May 7,1918. 9 SHEETS-SHEET 9. Fig.1T.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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