Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

Create a timeline

Public timelines

About & Feedback Acordo Privacidade FAQ

Cabinet Get premium

Donate

20 h 6 m, 1 jan 1952 ano - 1952- Cohen- first described principals of biological valve

Adicionado na linha do tempo:

NFP History

12 nov 2017

0

0

817

Data:

20 h 6 m, 1 jan 1952 ano

Agora

~ 73 years ago

About & Feedback Acordo Privacidade FAQ

Cabinet Get premium

Donate

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

Secured with SSL