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Priority to ES0253701ApriorityCriticalpatent/ES253701A2/es
Publication of ES253701A2publicationCriticalpatent/ES253701A2/es
Mejoras introducidas en el objeto de la patente principal nº 246.222 sobre perfeccionamientos en los dispositivos para la alimentación y protección de líneas de corriente eléctrica, caracterizadas porque se disponen unas piezas de contactos que muellean sobre sí mismos colocados en la placa inferior del interruptor.
ES0253701A1959-11-241959-11-24Perfeccionamientos en los dispositivos para la alimentaciën y protecciën de lineas de corriente electrica
ExpiredES253701A2
(es)