There is described a shipper/display carton that has high structural integrity as a shipper carton, is easy opening, and is functional as a display carton. The carton comprises a front panel with a weakened area near a bottom edge, two side panels, each having a weakened area extending substantially...http://www.google.es/patents/US6510982?utm_source=gb-gplus-sharePatente US6510982 - Shipper and display carton
