United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 309
nd produc- 85ing mechanism having a casing, and asound-conveying conduit with a compart-ment connecting with said conduit, a coverhinged above said compartment and adapt-ed to be swung as to its lower end into said 90compartment connecting Avith the conduitand a reproducer mechanism connectingwith… … Witnesses.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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