United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 793
sence of two subscrib-ing witnesses. THOMAS H. MACDONALD. Witnesses: M. R. Paedoe,C. W. Hedberg. 30 35 40 45 50 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. PHONOGRAPH PATENT. PHONOGRAPHIC RECORDING APPARATUSf… … Jtyz
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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