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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 231

An illustration from [Graphophone patents], 1878, leaf 231
elding material between theperipheral edge of said diaphragnn and saidmoimting to hold said diaphragm in place. 59. In a sound box, the combination with a diaphragm, of a mounting therefor, and a 75permanently resilient material between the]oeripheral edge of said diaphragm and saidmoimting to hold… … y^dt^A (^.%pCftUur^^

Phonograph · Patents

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

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