Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 47
![An illustration from [Graphophone patents], 1878, leaf 47](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten07unit-47-52.webp)
Tu\A. WITNESSES: <mA UuslXrV^Mjk. * ***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-graphophonepaten20unit-375-163.webp)
