J.B. Sutherland from Detroit patented refrigerated railroad cars.
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James H Mason patented the first US coffee percolator.
Daniel Halladay patented the self-governing windmill.
Leonard Norcross was granted the first US patent for an underwater diving suit.
The Soviet Union started mass producing the AK-47 assault rifle.
George Selden filed for the first patent for a gasoline-driven automobile.
