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20 Jul 1907 Jahr - 1907

Beschreibung:

Reginald Aubrey Fessenden inventaba la válvula que modula las ondas de radio que se emiten y de esta manera creó ondas de alta potencia en la transmisión.

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ByChema
3 Okt 2018
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0
902

Datum:

20 Jul 1907 Jahr
Jetzt
~ 118 years ago
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