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Babatunde Alao pfp
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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Yakub Ojo🎭📄🍖Ⓜ️ pfp
Yakub Ojo🎭📄🍖Ⓜ️
@geniuscrypt
And the yellow signal invented brought safety to traffic
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