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may 26, 1940 - Retroproyector
Description:
Este proyector era mas sencillo de manipular y mas eficaz para las clases.
Added to timeline:
Evolución tecnologica en las aulas
By
Dayana Díaz López
1 Nov 2018
0
0
560
Date:
may 26, 1940
Now
~ 86 years ago
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