Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 308
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^-x-<.-^-in^ <^^^ >--Tt^^, : NORIiia ITTEJIS CO.. PHOTO-UTHO, WASHINGTON. I (No Model.^ No. 499,879. 7 Sheets—Sheet 4. T. A. EDISON. PHONOGRAPH. Patented June 20, 1893. r-!^- … ^j^ /Q.6-Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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