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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 221

An illustration from [Graphophone patents], 1878, leaf 221
•^SSSSS^^^^SSS^S^S^^g^^SS^^^^^^^^^SsSSS^S/ … 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.

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.

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