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7 oct 1930 año - Overhead Projector
Descripción:
Device that projects an enlarged image of a transparency sheet placed on it onto a screen, board, or wall in the classroom.
Añadido al timeline:
Edu 141 History of Technology Timeline
By
Kiana Harris
4 dic 2017
0
0
314
fecha:
7 oct 1930 año
Ahora mismo
~ 93 years ago
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