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23 dic 1917 anni - Multicanalizacion

Descrizione:

Debido a que el uso del teléfono se incrementaba día a día, era necesario desarrollar una metodología para combinar 2 o más canales sobre un simple alambre.

Aggiunto al nastro di tempo:

HISTORIA DE LAS TELECOMUNICACIONES-LUIS GOMEZ -1949455

ByLuis Guillermo Gomez Aguirre
26 nov 2018
0
0
466

Data:

23 dic 1917 anni
Adesso
~ 107 years ago

Immagini:

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