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27 mar 1930 año - Overhead Projector

Descripción:

Initially used by the U.S military for training purposes in WWII, overhead projectors quickly spread to schools and other organizations around the country.

Añadido al timeline:

EME

ByDayanira Feliciano
14 nov 2017
0
0
565

fecha:

27 mar 1930 año
Ahora mismo
~ 95 years ago

Fotos:

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