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1 Jan 1876 Jahr - Telephone

Beschreibung:

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.

Zugefügt zum Band der Zeit:

17 Dez 2018
0
0
737

Datum:

1 Jan 1876 Jahr
Jetzt
~ 149 years ago

Abbildungen: