An "IMPROVEMENT INTRODUCED IN A LID-SEAL OF METAL CONTAINERS FOR POWDER FOOD OR OTHERS" constituted by fixing, through a beading process in the upper edge of a metal container (1) made of sheet metal with the set formed by a plastic membrane (2) forming a peripheral portion (9), followed internally of...http://www.google.es/patents/US20030075545?utm_source=gb-gplus-sharePatente US20030075545 - Introduced in a lid-seal of metal containers for powder food or others
Introduced in a lid-seal of metal containers for powder food or others
Número de solicitud: 10/304,142 Número de publicación: US 2003/0075545 A1 Fecha de presentación: 25 Nov 2002 Patente emitida: US6851568 ( Fecha de emisión 8 Feb 2005)
