33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
375482
32456
2
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Acuerdo
Privacidad
FAQ
Support 24/7
Cabinet
Get premium
Donate
7 oct 1930 año - Overhead Projector
Descripción:
Device that projects an enlarged image of a transparency sheet placed on it onto a screen, board, or wall in the classroom.
Añadido al timeline:
Edu 141 History of Technology Timeline
By
Kiana Harris
4 dic 2017
0
0
414
fecha:
7 oct 1930 año
Ahora mismo
~ 95 years ago
About & Feedback
Acuerdo
Privacidad
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL