Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 240
^7^ ^4^^^^^r^^^^^^^-,,u,^,...y>.^M..,,),,,,,,,,,.,,,y,,,,,,,,,,,,,,,,,,,,,,^,,^^^^^^^Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
More pictures from [Graphophone patents]
More like this