Lester Farnsworth Wire (September 3, 1887–April 14, 1958) is credited with the invention of the electric traffic light in 1912 in Salt Lake City. Wire worked as a detective for the Salt Lake City police force. The original traffic light, based on a semaphore system, had been invented in London in 1868 by John Peake Knight but had not been a success.The earliest known patent for a traffic light in the USA was U.S.Patent # 1,251,666 issued January 1, 1918, to J.B. Hoge of Cleveland, Ohio.
|Birth date||September 03, 1887|
|Date of death||January 01, 1957|