Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 355
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/r fjwoen tot Mcotas Kolbt/, V.vV^ ^wJ^x^y^ tlfctoZVWVj N. KOLBY. SOUND CONTROL MECHANISM.APPLICATION FILED JUNE 14, 1917. 1,256,025. 7 Patented Feb. 12,1918. 2 SHEETS—SHEET 2. … /& ^%^ ^r- vsv //Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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