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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 771

An illustration from [Graphophone patents], 1878, leaf 771
l position of said block com- prising a threaded pin secured to said blockand engaging withni a recess in the soundbox body, a nut mounted on said sound boxand engaging said threaded pin, and meansfor preventing axial movement of said nut,substantially as set forth. This specification signed and… … J^tp.^

Phonograph · Patents

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

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