SIMBOLOS (LITERALES Y GRAFICOS) Y ESQUEMAS EN ELECTROTECNIA. SIMBOLOS LITERALES
RECOMMENDED GRAPHICAL AND LITERAL SYMBOLS. LITERAL SYMBOLS.
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01.075 / Character symbols
29.020 / Electrical engineering in general
CTN 200 - Basic electrical standards
IEC 27:1966 (Identical)
It is cancelled by: UNE 21405-1:1995
It is cancelled by: UNE 21405-2:1996
It is cancelled by: UNE 21405-3:1994
It is cancelled by: UNE 21405-4:1995
