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Why is John Utynam still remembered?A.He is th

2022-07-31 19:58:25 外语考试 阅读

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Why is John Utynam still remembered?
A.He is the first person to get a patent for his revolutionary mouse-trap.
B.He is the first person to be granted an official patent.
C.He is the first person to be an officer in the Patent Office.
D.He is the first person to have invented a lawnmower.

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