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30 magg 1915 anni - Long distance call

Descrizione:

Jan 25 In the United States the first coast-to-coast (New York City to San Francisco) telephone call is made, facilitated by a recently invented vacuum tube amplifier.

Aggiunto al nastro di tempo:

Empires timeline

ByKishi
12 lug 2023
0
0
412

Data:

30 magg 1915 anni
Adesso
~ 110 years ago
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