[Class : 40] Water Treatment; Waste Water Treatment; Sewage Treatment; Providing Information Relating To Water Treatment; Treatment Of Waste Water From Generating Operations; Treatment Of Waste Water From Industrial Processes; Sewage Treatment Services And Treatment Of Materials

[Class : 37] Installation, Maintenance And Repair Of Water Treatment Equipment, Water Treatment Apparatus And Water Treatment Filters

[Class : 11] Apparatus For Heating, Steam Generating, Water Supply And Sanitary Purposes; Apparatus For Water Treatment, Waste Water Treatment And Sewage Treatment; Water Treatment Units For Aerating And Circulating Water, Water Treatment Equipment; Sewage Purification Apparatus; Sewage Purification Installations; Transportable Instruments For Processing Sewage; Settler Appa...