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LESLIE SMITH LAURENCE
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LESLIE SMITH LAURENCE
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Publication date
Application filed by LESLIE SMITH LAURENCEfiledCriticalLESLIE SMITH LAURENCE
Priority to ES0239438ApriorityCriticalpatent/ES239438A1/es
Publication of ES239438A1publicationCriticalpatent/ES239438A1/es
Dispositivo de cierre para un frasco de vacío incluyendo un labio de vertido anular que tiene dispositivo para ajustarse al bote, dispositivo elástico flexible para proporcionar un cierre entre el mismo y la superficie interior de la boca del frasco y dispositivo a rosca para aplicarse a un obturador provisto de las correspondientes superficies roscadas.
ES0239438A1958-01-071958-01-07MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE TERMOS
ExpiredES239438A1
(es)