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12 март 1920 г. - first radio

Описание:

Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission).

Добавлено на ленту времени:

New timeline

ByAmanda Lopez
14 ноя 2019

Дата:

12 март 1920 г.
Сейчас
~ 104 г назад

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