[Class : 11] Water Purifying Machines; Waste Water Treatment Apparatus; Waste Water Treatment Installations; Waste Water Treatment Tanks; Ultraviolet Sterilizers For Water Treatment; Water Treatment Units For Aerating And Circulating Water; Waste Water Treatment Tanks For Industrial Purposes; Ionization Apparatus For The Treatment Of Water; Waste Water Treatment Tanks For Household Purposes; Bioreactors For Use In The Treatment Of Waste Water; Ionization Apparatus For The Treatment Of Air Or Water; Waste Incinerators; Wastewater Purification Installations; Wastewater Treatment Apparatus; Wastewater Purification Units; Wastewater Treatment Installations; Waste Water Purification Installations; Waste Incinerators For Household Purposes; Waste Incinerators For Industrial Purposes; Wastewater Treatment Tanks For Industrial Purposes; Wastewater Treatment Tanks For Household Purposes; Water Purifying Machines; Water Purifying Installations; Water Purification Tanks; Water Purification Units; Installations For Purifying Water; Apparatus For Purifying Water; Installations For Water Purification; Water Purifiers For Industrial Purposes; Water Purifying Apparatus And Machines; Sewage Treatment Plants; Sewage Disposal Plants; Sewage Purification Apparatus; Sewage Purification Installations; Nuclear Reactors; Clean Chambers; Clean Room Installations; Industrial Air Purifiers; Industrial Rice Cookers; Environmental Control Apparatus For Sanitizing Purposes; Environmental Control Apparatus And Installations For The Purposes Of Lighting, Cooking, Cooling And Sanitizing; Air Purification Apparatus.