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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 953

An illustration from [Graphophone patents], 1878, leaf 953
Witnesses: nventqr; RAIH CO.. WASHINGTON. 6. H. UNDERHILL. PHONOGRAPH. APPLICATION FILED FEB. 16, 1906. 1,158,750. Patented Nov. 2,1915. 2 SHEETS—SHEET 2. … WITNE5 5E5 tyfarzas*-^*^^ IINOTON. O. C. a UNITED STATES PATENT OFFICE. GEORGE H. UNDERHILL, OF BOSTON, MASSACHUSETTS.PHONOGRAPH. 1,158,750. Specification of letters Patent. Patented Nov. 2, 1915. Application filed February 16,1906. Serial No. 301,339. To all whom it may concern: Be it known that…

Phonograph · Patents

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