Inside Out Library

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 170

An illustration from [Graphophone patents], 1878, leaf 170
aphs, the style S, springs G G,and insulating material K K, in combination. 5. In phonographs, the style S, springs G G,insulating material KK, and rubber block B,in combination. 6. In phonographs, the style S, springs GG,insulating material K K,rubber block B,andrubber band U, in combination.…

Phonograph · Patents

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

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