Elijah McCoy was a nineteenth-century inventor best known for his invention of:
Who is an Inventor?
This refers to a person who makes or produces an item which has not been previously in use that works after different clinical trials.
With this in mind, we can see that Elijah McCoy was a 19th century inventor who was best known for his role in the invention of lubrication devices which made train travel more efficient.
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https://brainly.com/question/2142303
