20 Furniture, namely, display stands and display boards; point of purchase displays; exhibition booths and stands and exhibition furniture, namely, racks, stands, cases, tables and boards; display units; display systems, consisting of panels and other load bearing structures, panel walls and boards, tables, shelves, cabinets, and structural parts therefore; display panels and screens, namely, free-standing panel units for exhibitions, displays and partitioning; display assembly components, structural parts and fixtures used with exhibit display systems, namely, non-metal fasteners in the nature of locks, clamps, hinges, clips, bases, connecting strips, tubes and rods