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13 maio 1930 ano - Overhead Projector

Descrição:

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

Adicionado na linha do tempo:

Educational Technology

ByDayanira Feliciano
14 nov 2017
0
0
489

Data:

13 maio 1930 ano
Agora
~ 95 years ago

Imagens:

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