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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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19 gen 1939 anni - siemens makes first commercial transmission electron mircoscope
Aggiunto al nastro di tempo:
biology timeline
By
Ashton Oveson
30 ott 2017
0
0
434
Data:
19 gen 1939 anni
Adesso
~ 86 years ago
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