[Class : 7] Condensers (In Particular For Air); Compressors, Pumps, Compactors; Expansion Machines And Turbines; Butterfly Valves Being Parts Of Machines And Process Flow Distributors; Mechanical Apparatus For Liquefying And Breaking Down Air, Mechanical Apparatus/Machines For Producing, Separating, Liquefying Industrial Gases And Gas Mixtures, Refinery Gases And Natural Gas, Included In This Class; Fittings For Gas Technology Machines And Machine Components, In Particular Pressure Regulators, Closure, Relief And Non Return Valves; Air And Hydrocarbon Gas Generators And Apparatus For Producing Air And Hydrocarbon Gas; Apparatus For Liquefying And/Or Separating Gases And Gas Mixtures, In Particular Air And Hydrocarbon Gases, Gas Extraction Apparatus, Gas Separators.[Class : 11] Apparatus For Steam Generating, Refrigerating, Ventilating, Fumigating And Gas Supply, And Gas Supply Installations; Evaporators; Air Or Hydrocarbon Gas Generators Being Membrane Apparatus And Distillation Apparatus For Generating Air Or Hydrocarbon Gas; Gas Regulating Apparatus And Safety Apparatus For Preparing An Available Gas Supply For Use, Mainly Consisting Of A Combination Of Measuring, Switching And Adjustment Components; Regulating And Safety Accessories For Gas Apparatus And Gas Pipes; Gas Purifiers, Gas Scrubbers, Adsorbers And Adsorber Installations, Diaphragm Gas Separators; Mechanical Apparatus/Machines For Purifying And Evaporating Industrial Gases And Gas Mixtures, Refinery Gases And Natural Gas.[Class : 42] Research In The Field Of Gas Separating And Engineering In Connection Therewith; Technological Consultancy And Engineering In Cryogenic Engineering, Chemistry And Petrochemistry, Gas Application Technology, Machine And Installation Construction; Technical Planning And Design, Basic And Detailed Engineering (Design And Planning), And Modification In Connection With Gas Technology, Cryogenic Engineering, Chemical And Petrochemical Apparatus And Installations.