Method and apparatus for the manufacture and stretching of a laminate comprising forming at least two laminates, which are stretched together in superposed relation, from at least four films so as to form a combination of laminates and subsequently peeling said combination to form separate laminates....http://www.google.es/patents/US4767488?utm_source=gb-gplus-sharePatente US4767488 - Method and apparatus for the manufacture and stretching of a laminate
Method and apparatus for the manufacture and stretching of a laminate