33
/it/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
4743239
423828
2

1 gen 1930 anni - Overhead Projector

Descrizione:

In the United States, the overhead projector was used to train the US military, but has since been adapted into schools and organizations. The effectiveness of a common screen facilitates learning, making it an effective tool.

Aggiunto al nastro di tempo:

Data:

1 gen 1930 anni
Adesso
~ 95 years ago