[Class : 11] Apparatus For The Liquefaction And Fractionation Of Air Or Other Gases By Means Of Pressure And Low Temperatures; Apparatus For The Fractionation Of Air Or Other Gases, Or The Concentration Of Nitrogen Or Oxygen Or Other Gas Components With The Aid Of Adsorption Agents Or Semi Permeable Membranes; Apparatus For Producing H2, O2, N2, Co2 And/Or Co By Means Of Electrolysis, Steam Reforming, Methanol Or Ammonia Dissociation Or Other Processes[Class : 37] Installation, Construction, Repair And Maintenance Of Installations Or Apparatus For Producing And/Or Delivering Nitrogen, Oxygen, Hydrogen, Carbon Dioxide, Carbon Monoxide And Other Gases Used In Industry, As Well As Functional And Safety Testing Of The Same Apparatus On Demand As Well As On A Regular Bases[Class : 42] Technical Planning And Design Of Units Or Installations For Producing, Procurement Or Delivery Of Nitrogen, Oxygen, Hydrogen, Carbon Dioxide, Carbon Monoxide And Other Gases For Use In Industry; Rental And Operation Of Transportable Or On Site Installed Apparatus For Producing Or Delivering Nitrogen, Oxygen, Hydrogen, Carbon Dioxide, Carbon Monoxide And Other Gases Used In Industry