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1 Jan 1915 Jahr - EXPERIMENTOS DE RADIO

Beschreibung:

Se hacen experimentos con radio difunsión AM (Amplitud modulada). Primer línea telefónica transcontinental con repetidores electrónicos.

Zugefügt zum Band der Zeit:

Evolución de la Comunicación

ByValentin Yate
5 Nov 2018
0
0
526

Datum:

1 Jan 1915 Jahr
Jetzt
~ 110 years ago

Abbildungen:

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