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Drilling fluids and additives to drilling fluids, included in this class. Machines for detecting, tapping, extracting, processing and purifying raw materials and resources from the earth. Leasing of machines for detecting, tapping, extracting, processing and purifying resources and raw materials from the earth, such as water, gas, oil, ores and/or minerals or mineral resources of this type. Mining; installation and maintenance of pipelines and boreholes for gas, water and oil; shaft or well drilling. Technical consultancy in the field of detecting, tapping, extracting, processing and purifying raw materials and resources from the earth, such as water, gas, oil, ores and/or minerals or mineral resources of this type; services of a physicist; services of a technical measurement and testing laboratory; services of a chemical laboratory; engineering services; chemical analysis; technical tests and checks; technical measurements; scientific investigations; research analysis for water, gas and crude oil exploration and extraction; providing computer animations; expert research and consultancy for water, gas and crude oil deposits; providing technical and scientific expert opinions on detecting, tapping, extracting, processing and purifying raw materials and resources from the earth such as water, gas, oil, ores and/or minerals or mineral resources of this type; geological research, geological surveys; geological prospecting; granting of licences on intellectual property; physics research; technical consultancy; testing of water, gas and oil wells.