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feb 18, 1837 - Электромагнитный телеграф
Description:
В Великобритании — Куком и Уитстоном
Added to timeline:
1 Nov 2018
0
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303
Таймлайн истории развития телеграфа
Date:
feb 18, 1837
Now
~ 187 years ago
Geo: