A slider-operated fastener comprises first and second opposing tracks including respective first and second interlocking profiles and respective first and second fins extending downward from the respective first and second profiles. The first and second fins are sealed to each other by a plurality of...http://www.google.es/patents/US6470551?utm_source=gb-gplus-sharePatente US6470551 - Method of making a fasteners arrangement with notches at spaced preseals
Method of making a fasteners arrangement with notches at spaced preseals
