United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 346
=>-7~ :^ I (No Model.) C. A. RANDALL. 4 Sheets-Sheet 4. APPARATUS FOR RECORDING AND REPRODUCING SPEECH &c ^°502.382. Patented Aug. 1,1893. … 1>2^ United States Patent Office. CHARLES ADAMS RANDALL, OF LONDON, ENGLAND.APPARATUS FOR RECORDING AND REPRODUCING SPEECH, 8cc. SPECIFICATION forming part of Letters Patent No. 502,352, dated August 1, 1893.Application filed June 11,1892, Serial No. 436,369. (No model.) Patented in England June…
Phonograph · Patents
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