United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 401
•d . … Harvey R.Broc/us. (Ot4M **> TMK MORRIS fKTKRS CO., WASHINGTON. O. C. UNITED STATES PATENT OFFIC HARVEY R. BROCIUS, OF SUMMERVILLE, PENNSYLVANIA, ASSIGNOR OFONE-HALF TO JAMES A. HAVEN, OF SUMMERVILLE, PENNSYLVANIA. REPRODUCER FOR GRAPHOPHONES. 2To. 828,836. Specification of Letters…
Phonograph · Patents
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