United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 304
^.^_ ^^^^ a^u-f^ dWotnci^/^ ,S~^^ V-^S^^L.^ ! NORBis «;Te»s CO.. PBOTOJj-nio., wMHiwrroH. D. c (No Model.) No. 499,879. 7 Sheets—Sheet 2. T. A. EDISON. PHONOGRAPH. Patented June 20. 1893. … THE NOfimS PETERS CO. PMOTO-LITHO.. WASHINQTtX. I (No Model.) 7 Sheets—Sheet 3. T. A. EDISON. PHONOGKAPH. Patented June 20, 1893.
Phonograph · Patents
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