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Publication of ES305651A1publicationCriticalpatent/ES305651A1/en
Closing device for bottles made of synthetic material, as a replacement for crown cap closures, consisting of a hollow stopper part, crossed by a membrane similar to a membrane and pressurized in the opening of the bottle, as well as in an enclosing part which surrounds the neck of the bottle in the manner of an elastic closure, characterized in that the wall of the stopper part has a different thickness along it, so that from the central area of the wall, located approximately same height as the inner thickening of the surrounding part, narrows considerably upwards and downwards, and because the wall-like opening of the wall is outside the thickest part of the wall and at such a distance from said area , that the wall of the plug can yield elastically in the area of its thickest part. (Machine-translation by Google Translate, not legally binding)
ES0305651A1963-11-071964-11-04Closure device for bottles of synthetic material. (Machine-translation by Google Translate, not legally binding)
ExpiredES305651A1
(en)
Tºpºn-precinto in combination with perforated metal capsule for all kinds of bottles or containers (Machine-translation by Google Translate, not legally binding)