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Priority to ES0247358ApriorityCriticalpatent/ES247358A1/es
Publication of ES247358A1publicationCriticalpatent/ES247358A1/es
Cierre automático de seguridad para gascaracterizado pot ir provisto de un manguito con válvula troncocónica de cierreaccionada por una manija y obligada por la acción de un muelle a permanecer cerrada siempremientras no se contrarrestre la acción de este muelle.
ES0247358A1959-02-191959-02-19Cierre automatico de seguridad para gas
ExpiredES247358A1
(es)