Inventor William Gray received a patent for creating the telephone that uses coins to operate it.
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The Safety Hood, which would later become the gas mask, was patented by Garrett Morgan.
Isaac Singer was granted his patent for a commercial sewing machine.
George B. Selden was granted the patent for a gasoline internal combustion engine car.
Abraham Lincoln received a patent for a device that would lift a boat over shoals and obstructions.
Inventor Otis Tufts patented the first elevator in the US.
