United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 901
hereof, I hereunto subscribemy name this 24th day of August, A. D. 1001916. CHARLES F. ROBERTS. Witnesses: Albin C. Ahlberg,A. G. McCaleb. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. (CRAPHCPEONE PA T ENT) PHONOGRAPH OR…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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