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/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 mar 1939 ano - siemens
Descrição:
siemens produced the first commercial transmission electron micrscope
Adicionado na linha do tempo:
alex
By
Alexander Brusacoram
30 out 2017
0
0
521
Data:
31 mar 1939 ano
Agora
~ 86 years ago
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