In the closable lid assembly comprising two elements joined together by means of a hinge, provision is made for the first element or lid to have a channel-shaped peripheral cavity designed to receive the peripheral relief of the second element, in the form of a small frame, which has a flat flange designed...http://www.google.fr/patents/US5110004?utm_source=gb-gplus-shareBrevet US5110004 - Lid assembly
