United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 523
r^/<? <Z2~~^s^*~f THE NORMS PETERS CO.. PHOTC-UTHO.. WASHINGTON, u. *.. 1,143,394. J. HOFFAY. SOUND BOX.APPLICATION FILED MAR. 13, 1914. Patented June 15, 1915. 2 SHEETS-SHEET 2. … /IZ/r/Y/TSSfS ^ ^T^/r*$JA^***&~^ > C^^t^i^u^ /Ni/jf/zro/f /irr<?/?/v<rrs. THE NORRIS PETERS CO., PHOTO-UTHO.. WASHINGTON. D C. UNITED STATES PATENT OFFICE. JOSE HOFFAY, OF LONDON, ENGLAND.SOUND-BOX. 1,143,394. Specification of letters Patent. Patented June 15, 1915. Application filed…
Phonograph · Patents
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