Inside Out Library

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 228

An illustration from [Graphophone patents], 1878, leaf 228
d between the screwsand driven therefrom, a diaphragm carriedby said lever, a coin receptacle also carriedthereby, and a catch O, substantially as de-scribed. In testimony whereof I have signed myname to this specification in the presence oftwo subscribing witnesses. WILLIAM LEONARD MAD… … L-—--C.)^^^?^

Phonograph · Patents

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

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