[Class : 11] Gas Generators For Industrial Utility Gases, In Particular Hydrogen, Oxygen, Nitrogen, Argon And Carbon Monoxide; Synthetic Gas Generators, Steam Reformers, Gas Generators; Gas Purifiers, Gas Separating Apparatus, Gas Scrubbers, Absorbers And Absorber Installations; Apparatus For The Separation And Purifying Of Industrial Gases And Natural Gases (Process Gases, Natural Gas, Refinery Gases).[Class : 37] Installation, Maintenance, Repair And Servicing Of Industrial Apparatus And Installations, In Particular Industrial Chemical And Gas Technology Units And Components Therefor, In Particular Gas Decomposers And Reformers, Reaction Apparatus For Gases, Fuelled And/Or Catalytic Gas Reactors, Gas Separating And Gas Purifying Units, Gas Treatment Units, Synthetic Gas Installations, Gas Generators.[Class : 42] Engineering, Technological Consultancy, Technical Design And Planning, Engineering (Installation Calculation And Optimisation), Development And Research, In Particular In Connection With Industrial Apparatus And Installations, In Particular Industrial Chemical And Gas Technology Units And Components Therefor, In Particular In Connection With Gas Decomposers And Reformers, Reaction Apparatus For Gases, Fuelled And/Or Catalytic Gas Reactors, Gas Separating And Gas Purifying Units, Gas Treatment Units, Synthetic Gas Installations, Gas Generators.