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1 sett 1950 anni - OHP

Descrizione:

Overhead Projector

It is made up of a base with a clear glass top housing an interior light and an adjustable arm with a lens and a mirror.

A transparent sheet is placed over the glass top. and the machine "projects" the sheet's writen material onto whatever surface the lens is facing.

Aggiunto al nastro di tempo:

STEM 12-E Group 1 MIL Timeline

ByJasper Responte
18 dic 2019
1
0
1005

Data:

1 sett 1950 anni
Adesso
~ 75 years ago

Immagini:

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