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9 h 16 m, 5 feb 1869 año - Westinghouse invents air break for RR

Descripción:

George Westinghouse had over 400 patents to his name

Añadido al timeline:

AP US History

ByZoe
10 may 2018
1
0
1290

fecha:

9 h 16 m, 5 feb 1869 año
Ahora mismo
~ 155 years ago
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