Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 145
![An illustration from [Graphophone patents], 1878, leaf 145](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten10unit-145-120.webp)
948,675. p. M. RAVENSKILDE. PHONOGEAPH. APPLICATIOH TILED OCT. 20, 1908. Patented Feb. 8,1910. 7 SHEETS-SHEET 5. … K^ ^s^ ^^. 6.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
More pictures from [Graphophone patents]
More like this
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-524-224.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-671-302.webp)