[Class : 37] Installation, Diagnosing, Retrofitting, Servicing, Repair, Maintenance And Cleaning Of Apparatus, Instruments, Devices, Units And Parts For Use In Connection With Operating And Controlling Electrical Power Production, Decentralized Power Production, Protection Of Electrical Equipment, Namely Control Units And Protection Relays For The Protection Of Generators, Switchboards And Components For Switchboards; Installation, Diagnosing, Retrofitting, Servicing, Repair, Maintenance And Cleaning Of Apparatus, Instruments, Devices, Units And Parts For Use In Connection With Protection Of Engines And Turbines, Namely Control Units And Protection Relays For Motors, Engines And Turbines, Including Diesel Engines, Gas Engines, Dual Fuel Engines, Biofuel Engines, Gas Turbines, Steam Turbines And Hydro Turbines; Installation, Diagnosing, Retrofitting, Servicing, Repair, Maintenance And Cleaning Of Apparatus, Instruments, Devices, Units And Parts For Use In Connection With The Reduction Of Fuel Consumption, Reduction Of Maintenance Intervals, Control Of Renewable Energy, Increase Of Efficiency Of Installations, Promotion Of Green Solutions, Instrumentation Of Marine Bridges, Control Of Engines And Gensets, Control Of Switchboards.