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23 h 11 min, 31 déc. 1931 ans - Первое устройство

Description:

появился стрелочный телеграф, использующий электричество. Изобретение нашего соотечественника Павла Львовича Шиллинга.

Ajouté au bande de temps:

Сети

ByDases
12 janv. 2018

Date:

23 h 11 min, 31 déc. 1931 ans
Maintenaint
~ Il y a 92 ans
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