haybales1283 haybales1283
  • 22-09-2017
  • History
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(lc)which african-american inventor received numerous patents for improvements on the functioning of steam engines?

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anniefaithoid
anniefaithoid anniefaithoid
  • 22-09-2017
Elijah McCoy was the african-american inventor that received numerous patents for improvements on the functioning of steam engines.
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ashleyyarbrough1
ashleyyarbrough1 ashleyyarbrough1
  • 15-07-2018

the answer is Elijah McCoy

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