Saving the day / Parsons, Karyn

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ISBN13: 
9780316457262
Compare Title: 
savingthedaygarrettmorganslifechanginginventionofthetrafficsignal

Saving the day

Garrett Morgan's life-changing invention of the traffic signal
  • Parsons, Karyn
"The story of Garrett Morgan, an African American inventor, who created the first automatic three-way traffic signal system"--.
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