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1 jan 1887 ano - Railroad Telegraph
Descrição:
in 1887, Granville Woods invented the railroad telegraph to help avoid train crashes and collisions.
Adicionado na linha do tempo:
1844-1887 Inventions in the United States
By
Brock Thacker
4 set 2018
0
0
227
Data:
1 jan 1887 ano
Agora
~ 137 years ago
Imagens:
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