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1 jan 1870 ano - Quadruplex telegraph

Descrição:

Thomas Edison invents the quadruplex telegraph after becoming a well-known inventor. The quadruplex telegraph could transmit to signals in two different directions on the same wire.

Adicionado na linha do tempo:

Thomas Edison

ByEmma
14 nov 2017
1
0
502

Data:

1 jan 1870 ano
Agora
~ 154 years ago
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