Drainage channels; anti-backflow valves for liquids, particularly for drainage pipes for sewage including faeces or not including faeces; pipes of all kind, particularly having cleaning access eyes and anti-backflow valves, drainage pipes, cable protecting ducts; pipe joints, pipe bends, pipe bells, pipe fittings; gratings; sewage collection containers; bathroom, floor, ceiling, cellar drains, drains for water for domestic or industrial use, drains for rain water, gullies, all drains with or without odor trap and/or anti-backflow valve; shafts or pits (chambers) of all kinds, particularly well drains; ventilation pit chambers and parts thereof, shafts or pits (chambers) to be installed in the ground, also man-sized and accessible, cable, inspection, supply and sample extraction chambers; feeding reservoirs, particularly for water, chemicals and other liquids; liquid containers, particularly fat (lipid), starch and/or light liquid separators; all goods in total or partially made of metal and as far as included in class 6

Raise and conveying apparatus, instruments and systems for sewage, for water for domestic use and for rain water, mainly consisting of a container having a vacuum or high pressure conveying apparatus, all goods preferably made of plastic or metal; pumps; rain water utilization apparatus, mainly consisting of a container, preferably made of plastic, a water pump, a water filter apparatus and an electric and/or electronic controller