Inside Out Library · Explore

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 735

An illustration from [Graphophone patents], 1878, leaf 735
^/ 2SMaMMV jl—/J> ^/s -/J^ 6 ■^ y =^===== J7 -/6 Witnesses: Eo<i.4r … Inventor: jj invencor: 3/

Phonograph · Patents

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

More pictures from [Graphophone patents]

More like this