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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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15 dez 1957 ano - El IPN inició sus transmisiones en circuito cerrado con clases de matemáticas impartidas por el profesor Vianney Vergara.
Adicionado na linha do tempo:
Televisión en México
By
Flor RG
21 nov 2017
0
0
391
Data:
15 dez 1957 ano
Agora
~ 67 years ago
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