Classe 1
Chemical products used in industry and sciencebauxite, alumina, manganese dioxide, alcohol, ethane, methane, methanol, sulphur, iron salts, uranium oxidefuel and oil additivespotashuranium
Classe 4
Industrial oils, crude oil, diesel oil, petroleum ether, petroleum (raw and refined)natural and synthetic fuel gases, coal, coke, coal naphtha and coal tar oil
Classe 6
Common metals and their alloys, unwrought or semi-wroughtferroalloysores of metal
Classe 37
Drilling of wellsdrilling of oil wellsdrilling of gas wellsoil drillingmining extraction
Classe 40
Treatment of materialsprocessing and treatment of ores and metalsprocessing and refining of oil and gasprocesses associated with extraction of metals from minerals
Classe 42
Gas, oil, petroleum, minerals and coal exploration, exploration of oilfields and gas fields, drilling of wells (geological prospecting), oil and gas prospectingoil-field exploitation, oil-field surveys, oil well testingmining, coal, ore and metals prospecting and mine exploitation