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15 déc. 1957 - El IPN inició sus transmisiones en circuito cerrado con clases de matemáticas impartidas por el profesor Vianney Vergara.

Ajouté au bande de temps:

Televisión en México

ByFlor RG
21 nov. 2017

Date:

15 déc. 1957
Maintenaint
~ Il y a 66 ans
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