Procedimento ed attrezzatura per la fabbricazione di contentori di vetro con collo filettato internamente

摘要

A glass container with a cylindrical neck including an internal thread allowing for reversible plugging and unplugging of the container by screwing and unscrewing said stopper, wherein the internal thread of the neck includes at least two independent thread turns allowing unplugging and plugging of the container by screwing and respectively unscrewing the stopper by rotating it over an angle of less than 180°.