Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Obtener premium

Create a timeline

Public timelines

About & Feedback Acuerdo Privacidad FAQ

Cabinet Get premium

Donate

1 ene 1928 año - Freon

Descripción:

Freon was discovered by Thomas Midgley, Jr..

Añadido al timeline:

Modern AC history

11 mar 2020

0

0

377

fecha:

1 ene 1928 año

Ahora mismo

~ 97 years ago

About & Feedback Acuerdo Privacidad FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL