Inside Out Library

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 389

An illustration from [Graphophone patents], 1878, leaf 389
^? ,^ >& Jtzr <*r -**? j>e ^e •?- … &r -*A \ WITNESSES -**z

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.

More pictures from [Graphophone patents]

More like this