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Babatunde Alao
@dokitababs
Garrett Morgan was an inventor who patented the first three signal traffic light. Previous lights did not include a yellow caution signal, so Morgan improved the design. He also patented a hood that helped protect people from breathing pollutants and gases. This design became the model for gas masks used in WWI.
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🎠Crypto Linda ðŸŽ
@cryptolinda
These are amazing practical inventions
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