30
/de/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
278820
24539
2
Public Timelines FAQ
Public TimelinesFAQ
Public TimelinesFAQ
For educational institutions For teachers For students Open cabinet
For educational institutions For teachers For students Open cabinet
Erstellen
Create a timeline
Public timelines
Library
FAQ

13 Mai 1930 Jahr - Overhead Projector

Beschreibung:

Initially used by the U.S military for training purposes in WWII, overhead projectors quickly spread to schools and other organizations around the country.

Zugefügt zum Band der Zeit:

Educational Technology

ByDayanira Feliciano
14 Nov 2017

Datum:

13 Mai 1930 Jahr
Jetzt
~ 94 years ago

Abbildungen:

About & FeedbackVereinbarungPrivatheitBibliothek
2024 © Time.Graphics
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Excellent (Trustpilot Reviews)
Based on 115+ reviews
Write your own review on Trustpilot.com