Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 644
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y^T ^- … ^)})\K\\Q.ty^<iy * (No Model.) No. 541,923. 2 SheetB—Sheet 2. T. A. EDISON. PHONOGRAPH. Patented July 2, 1895.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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