United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 752
No. 761,729. PATENTED JUNE 7, 1904. J. M. TOURTEL & G. L. HOGAN. PHONOGRAPH, &o. APPLICATION riLED SEPT. 6, 1903. KO UODEL. … FIG. 6 7 yyt!i.^^'^<-^ ^J^-'/i.^L^i^ttK-^*'^^ . w*3fc«rMfp3i O C.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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