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1 janv. 1960 - Overhead Projector

Description:

Overhead projector is a presentation device that projects the enlarged image of writing or drawing on clear or transparent film placed on it onto a wall or screen by means of an overhead mirror. It is a variant of slide projector that is used to display images to an audience.

Ajouté au bande de temps:

Media Era

ByRachel Dingal
5 déc. 2018
0
0
366

Date:

1 janv. 1960
Maintenaint
~ Il y a 65 ans

Les images:

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