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OHP (PROJECTOR) (jan 1, 1970 – jan 1, 1990)

Description:

Description: used in education and business before the advent of computer-based projection.

Interaction/exposure to: schools

Added to timeline:

electronic age timeline

ByRawan Alhamad
11 Dec 2019
0
0
230

Date:

jan 1, 1970
jan 1, 1990
~ 20 years
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