Special stopper for champagne bottles (Machine-translation by Google Translate, not legally binding)

摘要

A special stopper for champagne bottles, characterized by a solid, bulbous head, centered on the upper part of a hollow tubular breakwater, with a tapered outer profile, with a lower base bevelled, and an internal surface forming a fillet thread, and with the bottom, of its cavity, hemispherical. (Machine-translation by Google Translate, not legally binding)