United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 47
ZJ—3 ^A^*^ … PHOTO I.ITHO.. WASHINCrON. O C. UNITED STATES PATENT OFFICE. OWEN 0. BROPHY, OP PHILADELPHIA, PENNSYLVANIA.RECORD-TABLET POR TALKING-MACHINES. 1,126,377. Specification of Letters Patent. Patented Jan. 26, 1915. Application filed March 21,1913. Serial No. 755,944. To all mhom it mdy concent : Be it…
Phonograph · Patents
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