Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 196
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; NOHRIS PETERS CO., PHOTO-UITHO., (No Model.) No. 488,379. 2 Sheets—Sheet 2. G. BETTINI. PHONOGRAPH. Patented Dec. 20, 1892. jS- :^.^, … ^f^ 3,Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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