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ES218933A1954-12-101954-12-10Perfeccionamientos en la construcción de núcleos para transformadores, autotransformadores y reactancias
ExpiredES218933A3
(es)
PERFECCIONAMIENTOS EN LA FABRICACIoN DE ARROLLAMIENTOS PARA TRANSFORMADORES DE POTENCIA, REACTORES DE POTENCIA Y SIMILARES APARATOS DE INDUCCION ELECTRoMAGNÉTICA