Which African-American inventor received numerous patents for improvements on the functioning of steam engines?

Elijah McCoy

Granville Woods

Jan E. Matzeliger

Booker T. Washington

Please help! i cant find the answer anywhere....

Question

Which African-American inventor received numerous patents for improvements on the functioning of steam engines?

 Elijah McCoy

 Granville Woods

 Jan E. Matzeliger

 Booker T. Washington

Please help! i cant find the answer anywhere....

anonymous · Answer

i believe it was mccoy.

anonymous · Answer

thats what im thinking but im not a hundred percent sure..

anonymous · Answer

but mccoy was famous for his oil recycle method however he did launch patents.

anonymous · Answer

http://www.biography.com/people/elijah-mccoy-9391300

anonymous · Answer

It is A.

anonymous · Answer

thanks yall

anonymous · Answer

:)

anonymous · Answer

How did Hull House, established by Jane Addams and Ellen Starr, contribute to American society?

 It gave women an alternative to domestic labor.

 It provided needed social services for poor people.

 It helped assimilate displaced farm workers into city life.

 It produced newspaper articles attacking corrupt politicians.

anonymous · Answer

Question: Which African-American inventor received numerous patents for improvements on the functioning of steam engines? 
Correct Answer: A. Elijah McCoy