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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1947 ano - Invention of Aedion Vaccum tube
Descrição:
key component of radio computers
Adicionado na linha do tempo:
science timeline
By
Ashwin
23 fev 2020
0
0
285
Data:
1 jan 1947 ano
Agora
~ 78 years ago
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