United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 741
w sb K6 … BO 6 Qvd^MVMio /us j?ffor/zes/^ bOLt<A\niA IUNOGKAPH CO.. WASHINGTON. D. C. UNITED STATES PATENT OFFICE. 15 20 35 40 ARCHIE B. WALKER, OF CHICAGO, ILLINOIS.SOUND-REPRODUCING INSTRUMENT. 1,150,563. Specification of Letters Patent. Patented Aug. 17, 1915. Application filed January 5,1914. Serial…
Phonograph · Patents
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