A plastic lid closure assembly for containers, particularly for packaging purposes, comprising a lid and a lid carrier connected to one another by an integral web hinge, the lid carrier being formed with an upstanding resilient tongue and the lid being formed with a cam or the like adjacent the hinge...http://www.google.es/patents/US4244495?utm_source=gb-gplus-sharePatente US4244495 - Plastic lid safety closure assembly for containers
Plastic lid safety closure assembly for containers
