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30 май 1915 г. - Long distance call

Описание:

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.

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Empires timeline

ByKishi
12 июл 2023
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30 май 1915 г.
Сейчас
~ 110 г назад
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