A container for holding material such as ice-cream, which can be readily fabricated at a local container-filling plant, out of rolls of stock material and other easily stored and transported components. The container includes a sheet of kraft paper with thermoplastic coatings and a pair of U-shaped edgings...http://www.google.de/patents/US4346832?utm_source=gb-gplus-sharePatent US4346832 - Snap-lock container
