William L. Potts was born in 1883 and died in 1947.
William L. Potts (1883-1947) was a police officer in Chicago IL who was troubled by the increasing auto accidents. Around 1920, he invented the three way traffic signal. See the link below for more information.
Yes, William McKinley has 2 kids.
yes William did have a wife and kids
William L. Higgins was born in 1867.
How did William L Potts come up with the traffic lights?=who inspired William L Potts?=
as a teen william l potts was a struction builder
William L. Potts was born in 1883 and died in 1947.
William L. Potts was born in 1883 and died in 1947.
William L. Potts
William L. Potts
in acaxey stud world
William L. Potts invented the first manually operated traffic light in Detroit, Michigan in 1920. He installed the traffic light at the intersection of Woodward and Michigan Avenues.
William Potts Was in fact Black!
William L. Potts (1883-1947) was a police officer in Chicago IL who was troubled by the increasing auto accidents. Around 1920, he invented the three way traffic signal. See the link below for more information.
William L. Potts (1883-1947) was a police officer in Chicago IL who was troubled by the increasing auto accidents. Around 1920, he invented the three way traffic signal. See the link below for more information.
William L Potts was born in Chicago IL in 1883.