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Thomas Alva Edison “Wizard of Menlo Park”
Alexander Graham Bell Telephone (1876)
Alternate Current George Westinghouse
Alternate Current Westinghouse Lamp ad
The Airplane Wilbur Wright Orville Wright Kitty Hawk, NC – December 7, 1903
Model T Automobile Henry FordI want to pay my workers so that they can afford my product!
U. S. Patents Granted 1790s 276 patents issued. 1990s 1,119,220 patents issued.