[Class : 7] Drilling Machines; Fittings For Drilling Machines; Rock Drills [Machines]; Drilling Heads [Parts Of Machines]; Drilling Bits [Parts Of Machines]; Drilling Bits For Rock Drilling [Parts Of Machines]; Drill Chucks [Parts Of Machines]; Mine Borers; Drilling Rigs, Floating Or Non Floating; Drill Presses Being Machines; Drills (Electric Hand ); Milling Machines.[Class : 37] Deep Drilling; Drilling Of Deep Oil Or Gas Wells; Drilling Of Wells; Rock Drilling; Drill Bit Sharpening; Installation, Maintenance And Repair Of Drilling Equipment; Rental Of Drilling Equipment.[Class : 42] Scientific And Technological Services In The Field Of Drilling Technology; Research And Design In The Field Of Drilling Technology; Engineering Services In The Field Of Drilling Technology; Industrial Analysis And Research Services In The Field Of Drilling Technology.