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Priority to ES117732UpriorityCriticalpatent/ES117732Y/en
Publication of ES117732UpublicationCriticalpatent/ES117732U/en
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Publication of ES117732YpublicationCriticalpatent/ES117732Y/en
An improved stopper characterized essentially by the fact of comprising a cylindrical capsular cap which has a tubular projection centered on its bottom, which fits inside the neck of a bottle, both parts being arranged to transform a discoidal joint of soft material which after use initially, it is formed stably in the form of a cylindrical cap without recovering the primitive planar shape. (Machine-translation by Google Translate, not legally binding)