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Inventor Profiles: John Stevens
Invent Now | Hall of Fame | Search | Inventor Profile John Stevens Born 1749 - Died March 6 1838 Steam Engine Patented April 11, 1803 Inducted 2006 Independent inventor John Stevens was a pioneer in the development of steam-powered engines used in boats and railroad cars in t...
Inventor Profiles: John Ericsson
Invent Now | Hall of Fame | Search | Inventor Profile John Ericsson Born Jul 31 1803 - Died Mar 8 1889 Propelling Steam Vessels Screw Propeller Patent Number(s) 588 Inducted 1993 John Ericsson invented the ship propeller and incorporated the landmark