Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 28
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WITNESSES: INVENTOR 70. ATTORNEY^ (No Model.) No. 462,687. 4 Sheets—Sheet 4. W. BRUENINa. PHONOGRAPH. Patented Nov. 10, 1891.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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