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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 546

An illustration from [Graphophone patents], 1878, leaf 546
C. VOGT. TALKING MACHINE. APPLICATION FILED PEB.S, 1906. 1,034,664. Patented Aug. 6,1912. 16 SHEETS-SHEET 2. ^ … Ti'^J:rt^<L4..e^ 0^tf<?/^jz^^ COLUMBIA PLANOORAPH CO., WASHINGTON, D. C.

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

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