United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 344
C^J I i (No Model.) ^ » ^ . ,T■r^ . r r ^ Sheets-Sheet 3. C. A. RANDALL. APPARATUS FOR RECORDING AND REPRODUCING SPEECH, &c. No. 502,382. Patented Aug. 1, 1893.
Phonograph · Patents
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