A zipper arrangement for use in manufacturing thermoplastic bags that includes a zipper and at least one slider. The zipper includes first and second opposing tracks. The first track has a first profile and the second track has a second profile. The first and second profiles are releasably engageable...http://www.google.es/patents/US20010002504?utm_source=gb-gplus-sharePatente US20010002504 - Zipper and zipper arrangements and methods of manufacturing the same
Zipper and zipper arrangements and methods of manufacturing the same
Número de solicitud: 09/761,174 Número de publicación: US 2001/0002504 A1 Fecha de presentación: 17 Ene 2001 Patente emitida: US6347437 ( Fecha de emisión 19 Feb 2002)
