A can lid of a can provided with an easily openable opening means is disclosed wherein the can lid is equipped with a can lid which is fastened by winding tightly on the can main body and the top end opening of the can main body, a score section installed around the territory of the prearranged opening...http://www.google.es/patents/US20070108209?utm_source=gb-gplus-sharePatente US20070108209 - EASILY OPENABLE CAN LID
Número de solicitud: 11/613,909 Número de publicación: US 2007/0108209 A1 Fecha de presentación: 20 Dic 2006 Patente emitida: US8113375 ( Fecha de emisión 14 Feb 2012)