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1 janv. 1935 - М. Кнолль предложил анализатор электронной трубки

Ajouté au bande de temps:

Электронный микроскоп. История

ByВера Черепанова
15 nov. 2017

Date:

1 janv. 1935
Maintenaint
~ Il y a 89 ans
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