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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 300

An illustration from [Graphophone patents], 1878, leaf 300
No. 728,704. PATENTED MAY 19, 1903. E. D. GLEASON. SOUND BOX FOR TALKING MACHINES. APPLICATION PILED JULT 28, 1902. iro KOD£L. V 3 SHEETS— SHEET 2, "ti 1 ^ ^ 5i Oi - © " ' ^ u^ u N V5 4 ; c: t^ ^ •^ >s ^ , *Y^ Ss I 1 ^^^ 1 cr >1 . (^ ^ 1 >H ^ … ^_-^^C*WiM>^W2</CVtt/ ■ NOHBJS peters CO. PHOTO-LITMO, WASHINGTON, I

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

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