United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 745
^Witnesses … /£Ca^As*sO «—«5fc-«^c-u-e-*. THE NORHtS RETKKS CO.. WASHINGTON. D. C UNITED STATES PATENT OFFICE. THOMAS H. MACDONALD, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TOAMERICAN GRAPHOPHONE COMPANY, OF BRIDGEPORT, CONNECTICUTA CORPORATION OF WEST VIRGINIA. COMBINED RECORDER AND REPRODUCER. No. 842,897.…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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