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7 Okt 1930 Jahr - Overhead Projector
Beschreibung:
Device that projects an enlarged image of a transparency sheet placed on it onto a screen, board, or wall in the classroom.
Zugefügt zum Band der Zeit:
Edu 141 History of Technology Timeline
By
Kiana Harris
4 Dez 2017
0
0
410
Datum:
7 Okt 1930 Jahr
Jetzt
~ 95 years ago
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