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Meet the Inventor of the First Gas Mask and the Three-Position Traffic
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BNR • Garrett Morgan was an amazing man! Even though he...
Meet the Inventor of the First Gas Mask and the Three-Position Traffic
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Garrett Morgan's Inventions: Smoke Hood, Traffic Light with three
Biography of Garrett Morgan, Inventor of the Gas Mask and Traffic Signal
Garrett A. Morgan, Cleveland’s ‘Black Edison,’ created today’s traffic