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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 473
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Attorneys THE HORR13 PETEHS CO.. WASHINGTON, o, C. 1 No. 831,606. PATENTED SEPT. 25, 1906. T. A. EDISON.SOUND RECORDING APPARATUS. APPLICATION FILED NOV. 8, 1901. 4 SHEETS-SHEET 3. … Witnesses: Attorneys ,„r »0»«l» PCTLRS CO, W43H<»OTO. D. C. No. 831,606. PATENTED SEPT. 25, 1906.T. A. EDISON.SOUND RECORDING APPARATUS. APPLICATION PILED NOV. 8. 1901. 4 8HEET8-8HEET 4- ^e -&*Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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