Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 869
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INVENTOR 37- WITNESSES ATTORNEY COLUMBIA PLANOORAPH CO., WASHINOTON, D. C. A. C. DIEHL. SOUND BOX.APPLICATION FILED AUG.31, 1910. 1,156,217. >> 6 Patented Oct. 12,1915. 5 SHEETS-SHEET 2. m JZ6gr. 5. … J^i^.7.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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