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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1053

An illustration from [Graphophone patents], 1878, leaf 1053
roove receiving the other stud. WILLIAM ROTTER.In the presence of— Russell M. Everett,Frances E. Blodgett. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. G ( PHONOGRAPH PATENT. COATED PHONOGRAPH STYLUS AND OTHERARTICLE, #… … I COLUMBIA PLANOGRAPH CO., WASHINGTON, D. C. UNITED STATES PATENT OFFICE. ENGELHARDT A. ECKHARDT, OE PHILADELPHIA, PENNSYLVANIA.COATED PHONOGRAPH-STYLUS AND OTHER ARTICLE. 1,162,285. Specification of Letters Patent. Patented NOV. 30, 1915. Continuation of application Serial No. 867,955, filed…

Phonograph · Patents

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