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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1980 ano - Fim do processo de padronização da frequência em 60 Hz.
Adicionado na linha do tempo:
Principais Marcos do Setor Elétrico Brasileiro
By
Eudes de Almeida
8 dez 2018
0
0
507
Data:
1 jan 1980 ano
Agora
~ 45 years ago
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