United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 951
Frq. 7, … Inventor:MmesKDooley, By his ^ttorney^^^-fyQj UNITED STATES PATENT OFFICE. JAMES H. DOOLEY, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO DE CAMP AND SLOAN,INC., OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY. SPEED REGULATOR AND INDICATOR FOR PHONOGRAPHS. 1,265,757. specification of Letters Patent.…
Phonograph · Patents
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