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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 695
![An illustration from [Graphophone patents], 1878, leaf 695](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten10unit-695-481@270.webp)
3-vi/i>e4i4k>r- yyi^^u^^Xp. ypL-tuc coix*t*c^t-^ 3^ vC-o-o flttouvieM. -7C. ^ THE HOKIttS PCrCWS CO., WASMIffCTON. O. C T. A. EDISON. METHOD AND APPARATDS FOB MAKING SOUND BEOORDS. APPLIOATIOH FILED AUQ. 30, 1904. 970,615. Patented Sept. 20,1910. ^ ^ 4 SHEETS-SHEET 2. … ^ •^IRJ i/tvM2<iOC<V^Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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