The package is of the blister variety and includes a paperboard component, a transparent plastic sheet heat sealed to the paperboard component and a plastic blister component. The blister is pivotally connected to the paperboard-plastic sheet composite. A portion of the paperboard plastic sheet composite...http://www.google.es/patents/US4574951?utm_source=gb-gplus-sharePatente US4574951 - Reclosable package
