Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 727
![An illustration from [Graphophone patents], 1878, leaf 727](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten20unit-727-332.webp)
Mg:£ … X7,1 vty W^ W/T/VESSfS.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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