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1 janv. 1830 - Aparece el Telégrafo Mecánico Inventado por Brain y lo sucede Joseph Henry.
Ajouté au bande de temps:
Historia Telecomunicaciones Mundo
By
Nilson Reyes Sigua
6 oct. 2018
0
0
501
Date:
1 janv. 1830
Maintenaint
~ Il y a 195 ans
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