A tabletop includes a tabletop member and longitudinal mid-support arrangement. The tabletop member includes a plastic made top panel and a plastic made bottom panel which is overlapped connected with the top panel in an edge to edge manner and defines a receiving cavity between the top and bottom panels....http://www.google.de/patents/US7059255?utm_source=gb-gplus-sharePatent US7059255 - Plastic tabletop with longitudinal mid-support arrangement for foldable table