United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 401
at the same time, of notesproduced on the piano and the sounds re- 50cei\ed by the talking machine, at the samet;me are recorded in both recording meansat the same relative speeds at which they areproduced. Signed at New York city in the county of 5cNew York and State of New York this 15thday of… … •-«c>=^=: WITNESSES :
Phonograph · Patents
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