33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 marzo 1939 anni - siemens
Descrizione:
siemens produced the first commercial transmission electron micrscope
Aggiunto al nastro di tempo:
alex
By
Alexander Brusacoram
30 ott 2017
0
0
521
Data:
31 marzo 1939 anni
Adesso
~ 86 years ago
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