Inventor

Garrett A Morgan

Patents indexed

Year range

1923

Associated with

Years active

1923

Total patents

Most recent

1923

Domains

automotivemechanical

Activity by decade

1920s

Patents

Career timeline

1 patents, in 1923

Dot size = forward citations

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How Garrett Morgan Invented the Three-Position Traffic Signal

Garrett Morgan's 1923 patent for a T-shaped traffic signal introduced a 'caution' position to manage vehicle flow more safely at busy intersections.

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