Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 471
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THE WORWIS PETEHS CO., WASHINGTON D. C No. 831,606. PATENTED SEPT. 25, 1906.T. A. EDISON.SOUND RECORDING APPARATUS. APPLICATION PILED NOT. 8. 1901. 4 8HEETS-8HEET 2 ^.J Witnesses: JJ&0. 77 C^Ui^v<^Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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