[Class : 37] Building, Construction And Demolition; Rental Of Tools, Plant And Equipment For Construction And Demolition; Mining And Gas And Oil Extraction; Building Contractor Services, In Particular Conducting Building Projects, In Particular Construction Of Tips, Development Of Construction Sites, Track Building, Structural Engineering, Construction Of Sporting Arenas And Civil Engineering; Installation, Cleaning, Repair, Maintenance And Fault Elimination In Relation To Networks For Data Communication (Hardware), Apparatus, Installations And Equipment In The Fields Of Energy Technology, Electrical Engineering, Building Technology, Communications Engineering And Environmental Technology, Mechanical Engineering, Plant And Equipment Construction, Oil Tank Disassembly; Fault Elimination In Electric Installations, In Particular In The Fields Of Energy Technology, Electrical Engineering, Building Technology, Communications Engineering And Environmental Technology, Mechanical Engineering And Power Tool Manufacturing, Construction And Maintenance Of Supply Networks For Transporting Natural Gas, Liquid Natural Gas, Oil, Electrical Energy; Organisation Of Access To The Pipeline Networks Of Others (Building Construction), Namely Through Construction Services (Building Construction); Rental Of Objects In Connection With The Providing Of The Aforesaid Services, In Included In This Class; Consultancy And Information In Relation To The Aforesaid Services, Included In This Class