8 окт 1950 г. - OHP Projector
Описание:
An overhead projector, like a film or slide projector, uses light to project an enlarged image on a screen. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film with the image to be projected either printed or hand-written/drawnДобавлено на ленту времени:
Дата:
8 окт 1950 г.
Сейчас
~ 75 г назад