79028323
Jun 20, 2006
Sep 25, 2007
Machines for the separation of solids from liquids, namely separators for the separation of sludge, bacteria and viruses from waste water
MachineryWaste water purification units; sewage treatment plants; water filtering units with membranes or membrane sections for filtering waste water
Environmental Control ApparatusInformation concerning matters of construction; installation, maintaining and repairing of waste water purification plants and water purification machines
Building Construction and Repair