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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 810
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No. 694,705. Patented Mar. 4, 1902. J. WALL. AUTOMATIC RELEASING MECHANISM FOR PHONOGRAPHS, &c. (AppUciLtion filed Nov. 9, 1900.) (No Model.) 2 Sheets— Sheet I. … <p&^ <£\At*Cc>/Ttxv-v-e^v> — 3.LITHO , WASHINGTOrJPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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