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 Accordo Privatezza FAQ

Cabinet Get premium

Donate

1 gen 1935 anni - М. Кнолль предложил анализатор электронной трубки

Aggiunto al nastro di tempo:

Электронный микроскоп. История

ByВера Черепанова

15 nov 2017

0

0

606

Data:

1 gen 1935 anni

Adesso

~ 90 years ago

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

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

Secured with SSL