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1 jan 1967 ano - 120V/240V at 60 Hz or 50 Hz was established as the standard.
Descrição:
Note: Date is not exact.
Adicionado na linha do tempo:
11 out 2018
0
0
642
Events Leading to 120V Decision in the US
Data:
1 jan 1967 ano
Agora
~ 57 years ago
