Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 151
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H. B. STOCKS. APPARATUS FOR RECORDING SOUNDS PHOTOGRAPHICALLY.APPLICATION FILED OCT. 7, 1915. 1,252,965. Patented Jan. 8,1918. 2 SHEETS-SHEET 2. Cfp^k*^ … C^? ,c^T i^7*Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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