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VIZCAINA DE ELECTRIFICACIEN DO
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VIZCAINA DE ELECTRIFICACIEN DO
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Application filed by VIZCAINA DE ELECTRIFICACIEN DOfiledCriticalVIZCAINA DE ELECTRIFICACIEN DO
Priority to ES0238679ApriorityCriticalpatent/ES238679A1/es
Publication of ES238679A1publicationCriticalpatent/ES238679A1/es
Perfeccionamientos en las ollas a presión, caracterizados por haberse creado una válvula de trabajo tal que impide que la olla sobrepase una tensión interior superior a la debida , dejando salir al vapor en ese momento, de forma que no pueda ocasionar daños al usuario.
ES0238679A1957-11-211957-11-21Perfeccionamientos en las ollas a presiën
ExpiredES238679A1
(es)