Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 699
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C^VIVQA^^^OZ /7-t-c<-<--V ^- yii^.t^^CC^-^iUy.l^^ a^hxj ^^-ySySiticyc^ne.i^ -zf^ ^**^ TMK NOmRtS PETKms CO., WASHIMC70N, O. C T. A. EDISON. METHOD AND APPAEATDS FOB MAKING SOUND BEOOBDS. APPLIOATIOH FILED ADO. 30, 1904. 970,615. Patented Sept. 20,1910. 4 SHEETS-SHEET 4. … ^X^-ptvteAPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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