Inside Out Library · Explore
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 909
![An illustration from [Graphophone patents], 1878, leaf 909](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten15unit-909-484.webp)
^z … JZ^qgf.-£. 7 T 6^ 9-\ (I ^WUhi^v^co ttz/t^^^-.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 [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-345-194.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-501-222.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-167-63.webp)
