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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 991

An illustration from [Graphophone patents], 1878, leaf 991
rial, exceeding the mold in bulk, and pre-senting sufficient excess heating capacity toraise the temperature of the mold to or above 35the melting point of the material, substan-tially as set forth. This specification signed and witnessedthis f 4th day of May, 190(i. JONAS W. AYLSWORTH. Witnesses:… … jrfy? i<r <* O ^C ^-^ 1^ Homms rtrrcus CO.. Washington, d c UNITED STATES PATENT OFFICE. JONAS W. AYLSWORTH, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO NEWJERSEY PATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A CORPO-RATION OF NEW JERSEY. PROCESS OF MAKING DUPLICATE SOUND-RECORDS. No. 855,555.…

Phonograph · Patents

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