Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 199
cJvt/UCH-foZ No. 816,978. H. J. HAGEN.TALKING MACHINE. APPLICATION FILED MAB.28, 1905. PATENTED APR. 3, 1906. 3 SHEETB-SHEET 2. … ^Witnesses 9K qQh-i m-^o, filtto^v No. 816,978. H. J. HAGEN.TALKING MACHINE. APPLICATION PILED MAR. 28, 1905 PATENTED APK. 3, 1906. 3 SHEETS-SHEET 3. J?^y. 3. J6- -~Z3 ZO 6<vPhonograph · Patents
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