Garrett Morgan patents the three-position traffic signal - November 20th, 1923 - a podcast by iHeartRadio & HowStuffWorks
from 2021-11-20T10:00
::
::
On this day in 1923, prolific inventor and entrepreneur Garrett Morgan received the patent for a traffic light signal of his own design.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com
Further episodes of This Day in History Class
Further podcasts by iHeartRadio & HowStuffWorks
Website of iHeartRadio & HowStuffWorks