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Physics, 30.01.2020 09:48 margaretjloah12

Which of the following events occurred first in 1846?
a. orville and wilber wright invent the first airplane.
b. george westinghouse invents the air brake.
c. thomas edison invents the incandescent lamp.
d. elias howe invents the sewing machine.

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Which of the following events occurred first in 1846?
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