[Class : 7] Machines And Machine Tools; Motors And Engines (Except For Land Vehicles); Couplings And Transmission Components (Except For Land Vehicles); Heat Exchangers (Machine Components); Steam Engines; Steam Boilers For Generation Of Steam (Machine Components); Steam Condensers (Except Machine Components); Condenser (Steam) Machine Components; Pumps (Machine Or Engine Components); Pumps For Heat Installations; Ship Pumps.[Class : 11] Apparatus For Heating, Steam Generation, Cooling, Drying, Ventilation And Water Supply, And For Sanitary Purposes; Heat Exchangers (Except Machine Components); Heat Exchangers (Except Machine Components) For Removal Of Condensed Water; Steam Boilers For Generation Of Steam (Except Machine Components); Steam Generator Installations; Condenser For Cooling Agents; Evaporators (Evaporation Apparatus); Industrial Waste Water Purification Plant; Apparatus For Treatment And Purification Of Wastewater; Distillation Apparatus; Water Heating Units; Heat Pumps; District Heating Pipes.[Class : 37] Repair And Installation Of Heat Exchangers, Pumps And Boilers And Repair And Installation Of Machines And Units For Generation Of Steam, For Cooling And For Purification.