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1 janv. 1835 - Telegrafen

Description:

Samuel Morse oppfant telegrafen. Den fungerte ved at elektromagnetiske signaler ble sendt over et ledningsnett fra et sted til et annet.

Ajouté au bande de temps:

Leonard's timeline

ByLeonard Gartiser
26 oct. 2021
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Date:

1 janv. 1835
Maintenaint
~ Il y a 190 ans
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