Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 221
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Y&Jbrv&ss&s: V J-tvuervto-n ^^^ %l)t TUoiMUyJ Teter HesseIvlcs THE NORRIS PETERS CO.. PHOTC LltnO.. WASHINGTON. O C s P. HESSELITJS. MANUALLY CONTROLLED PHONOGRAPHIC MECHANISM. APPLICATION PILED FEB. 21, 1914. 1,132,092. Patented Mar. 16,1915. 4 SHEETS-SHEET 2. «1 i%.4. ^ ^^ … 33 -32 Eug.3, ^z1SPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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