United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 90
, PHOTOH.ITHO., WASHINGTON, D United States Patent Office. EDWARD L. WILSON, OF NEW YORK, N. Y.COIN-CONTROLLED APPARATUS FOR GRAMOPHONES. SPECIFICATION forming part of Letters Patent No. 472,417, dated April 5, 1892. Application filed December 3,1891, Serial No, 413,871. (ITc model.) [ To all whom…
Phonograph · Patents
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