What African-American inventor received 5 patents in the field of shoemaking?
A. Elijah McCoy
B. Jan Ernst Matzeliger
C. Ernest Just
D. Lewis Latimer
Answer: Option B
Solution(By Examveda Team)
Jan Ernst Matzeliger received 5 patents in the field of shoemaking.Related Questions on Inventions
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In which decade was the first solid state integrated circuit demonstrated?
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B. 1960s
C. 1970s
D. 1980s
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Which scientist discovered the radioactive element radium?
A. Isaac Newton
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