Full Title

Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper (rigid pallets with side walls B65D19/02) > by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body (specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections B65D5/36)