United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 789
n for cooperation with a record suit-able to it. In testimony whereof, I have signed myname to this specification, this 28 dav of 115July, 1915. RICHARD JAMES PRETTIE. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.… … gjtv-uc-ntot:
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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