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Individual
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Individual
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Priority to ES528346ApriorityCriticalpatent/ES8501033A1/es
Publication of ES528346A0publicationCriticalpatent/ES528346A0/es
Publication of ES8501033A1publicationCriticalpatent/ES8501033A1/es
ES528346A1983-12-231983-12-23Perfeccionamientos en los medios de conservacion de los tornillos para retencion de carriles en vias ferroviarias
ExpiredES8501033A1
(es)