United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 685
J&&T.Z *#&&. A. N. PIERMAN. SOUND REPRODUCER. APPLICATION FILED MAR. 22, 1906. 1,148,619. Patented Aug. 3,1915. 2 SHEETS—SHEET 2. … UNITED STATES PATENT OFFICE. ALEXANDER N. PIERMAN, OE NEWARK, NEW JERSEY, ASSIGNOR TO NEW JERSEYPATENT COMPANY, OE WEST ORANGE, NEW JERSEY, A CORPORATION OE NEW JERSEY. SOUND-REPRODUCER. 1,148,619. Specification of Letters Patent. Patented Aug. 3, 1915. Application filed March 22,1906. Serial No.…
Phonograph · Patents
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