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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 729
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-#£ £-6 J^^Cf.^. … &3 jB& &J WITNESSES INVENTOR ~y\fi2lui>nnJf2tenru5on /JtMcPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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