The Heroic Age of American Invention

airplane alternating current American invention armor Armstrong articulated locomotive automobile battery became began Bell Bessemer boat British built Bushnell cable called carbon Charles Goodyear circuit claim coil Colt Company court cylinder developed device Edison electric light electromagnet Elihu Thomson England Ericsson Evans experiments father Fessenden field filament fire Fitch FLETCHER PRATT flying Forest Franklin Fulton furnace gave guns Henry Hiram Stevens Maxim Hudson Maxim idea improved infringement inventors John Kelly lamp Langley later locomotive machine machinery magnetic manufacture McCormick mechanic Morse motor naval Navy nineteenth century Oliver Evans Orville Orville Wright patent law Patent Office practical propeller radio railroad reaper revolving rifles Robert Livingston Stevens rubber scientific scientists Selden ship Sholes steam engine steamboat steel submarine success telegraph telephone Tesla Thomson took train tried turn turret United voltage warships Westinghouse wheels Whitney wire wrought iron York