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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 144
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IHRrS PETER3 CO., PHOTO-UTHO., WASHINQTON. I (No Model.) No. 479,431 3 Sheets—Sheet 3. V. LAHOLA. PHONOGRAPH. Patented July 26, 1892. … ^ <;^J^^*^ f^^i^^ ^i^t-^t^^it^ ^/Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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