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Individual
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Individual
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Priority to ES1971169711UpriorityCriticalpatent/ES169711Y/en
Publication of ES169711UpublicationCriticalpatent/ES169711U/en
Application grantedgrantedCritical
Publication of ES169711YpublicationCriticalpatent/ES169711Y/en
An improved stopper, of the type comprising a one-piece body made of a flexible plastic material in the shape of a cup, with an upper closing lid, characterized essentially by the fact that its closing side wall has its convex outer surface, to ensure contact with the walls of the container to be closed, while the inner surface is provided concave, following the same profile as the external surface, in order to give said side wall greater flexibility, thus achieving greater security of closure. (Machine-translation by Google Translate, not legally binding)
ES1971169711U1971-06-071971-06-07
A PERFECTED CAP.
ExpiredES169711Y
(en)