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1 ene 1876 año - Telephone

Descripción:

During the 1870's, two well known inventors both independently designed devices that could transmit sound along electrical cables. Those inventors were Alexander Graham Bell and Elisha Gray.

Exposure: Modern telephone models used for calling loved ones ad friends.

Añadido al timeline:

MILproject

Bybob john
17 dic 2018
0
0
653

fecha:

1 ene 1876 año
Ahora mismo
~ 149 years ago

Fotos:

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