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26 Mai 1940 Jahr - Retroproyector

Beschreibung:

Este proyector era mas sencillo de manipular y mas eficaz para las clases.

Zugefügt zum Band der Zeit:

Evolución tecnologica en las aulas

ByDayana Díaz López

1 Nov 2018

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0

548

Datum:

26 Mai 1940 Jahr

Jetzt

~ 85 years ago

Abbildungen:

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