New male element retention device in pressure brooches. (Machine-translation by Google Translate, not legally binding)

摘要

New device for retaining the male element in the snap fasteners, characterized in that on the internal edge of the notched central hole of the base of flexible material of the cup of the female element, there is an annular rim, as an annular parapet internal, with interruptions due to the notches, in which protruding flange the protrusion of the end of the male element, strung, of the same snap is attached. (Machine-translation by Google Translate, not legally binding)