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12 St. 23 Min, 1 Jan 1931 Jahr - Р. Руденберг получил патент на просвечивающий электронный микроскоп

Zugefügt zum Band der Zeit:

Электронный микроскоп. История

ByВера Черепанова
15 Nov 2017

Datum:

12 St. 23 Min, 1 Jan 1931 Jahr
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~ 93 years ago
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