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Priority to ES87293ApriorityCriticalpatent/ES87293A1/es
Publication of ES87293A1publicationCriticalpatent/ES87293A1/es
ES87293A1923-11-081923-11-08Un nuevo sistema de acoplamiento del soporte doble de telegráfico telefónico para crucetas de hierro en ángulo.
ExpiredES87293A1
(es)