7
Controls (Hydraulic -) for machines, motors and engines; Compressors [machines]; Control mechanisms for machines, engines or motors; Distribution machines, automatic; Pumps [machines]; Pumps [parts of machines, engines or motors]; Machine coupling and transmission components (except for land vehicles); Motors and engines (except for land vehicles); Machine tools
9
Control panels [electricity]; Converters, electric; Condensers [capacitors]; Cables, electric; Conductors, electric; Circuit breakers; Connections, electric; Connections for electric lines; Connectors [electricity]; Data processing apparatus; Inverters [electricity]; Monitoring apparatus, electric; Measuring apparatus; Measuring instruments; Measuring devices, electric; Remote control apparatus; Remote control of industrial operations (Electric installations for the -); Switches, electric; Scientific apparatus and instruments; Nautical apparatus and instruments; Surveying apparatus and instruments; Photographic apparatus and instruments; Cinematographic apparatus and instruments; Optical apparatus and instruments; Weighing apparatus and instruments; Measuring apparatus and instruments; Signalling apparatus and instruments; Checking (supervision) apparatus and instruments; Life-saving apparatus and instruments; Teaching apparatus and instruments; Apparatus and instruments for conducting electricity; Apparatus and instruments for switching electricity; Apparatus and instruments for transforming electricity; Apparatus and instruments for accumulating electricity; Regulating apparatus, electric; Apparatus and instruments controlling electricity; Electric installations for the remote control of industrial operations; Processors [central processing units]
37
Building construction and repair; Construction; Drilling of deep oil or gas-wells; Machinery installation; Machinery installation, maintenance and repair; Pipeline construction and maintenance; Underwater construction; Underwater repair; Wells (Drilling of -); Pipe installation services; Machinery maintenance and repair
42
Scientific and technological services; Industrial analysis services; Research services; Design and development of computer software; Design and development of computer hardware; Installation of computer software; Maintenance of computer software; Updating of computer software; Computer system analysis; Monitoring of computer systems by remote access; Analysis for oil-field exploitation; Oil-field surveys; Oil-well testing