Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 223
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Yfobriesses Xrvuervton t^«UXl)?U™^„ „ . -Peter* He^elM* ^a^rn^ji^C & 6£2*^<_*_> 1,132,092. P. HESSELIUS. MANUALLY CONTROLLED PHONOGEAPHIC MECHANISM. APPLICATION PILED FEB. 21, 1914. Patented Mar. 16,1915. 4 SHEETS-SHEET 3. … Jj-vu>&rvto7-> THE NORRIS PETERS CO., PHOTC-LITHO.. WASHINGTON. O. C. 1^132,092. P. HESSELItJS. MANUALLY CONTROLLED PHONOGRAPHIC MECHANISM. APPLIOATIOH FILED FEB. 21, 1914. Patented Mar. 16,1915. 4 SHEETS-SHEET 4.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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