NESTING TRAY WITH STACKING KEYED INTERLOCK

摘要

Each tray in a plurality of 90 degree nestable and stackable trays is formed with a specific key portion along the upper edge of the end walls and a corresponding specific groove and web structure along the lower edge of the end walls. A first group of trays has a specific key structure different from a second group of the trays, each group of trays having its own key structure. Trays of a first group cannot be stacked in vertical alignment with trays of the second group, since the key structure of the first group is adapted to be received by the web structure of the first group, and not by the web structure of the second group, and vice versa.