Oil and gas drilling; Oil and gas industrial machine cleaning services; Oil and gas well downhole coring services; Oil pipeline construction; Oil pipeline laying; Oil pumping; Oil pumping and extraction; Oil well casing, tubing, and drill pipe installation; Oil well drilling; Cementing services for oil and gas wells; Construction of facilities, structures, living quarters, and utility buildings, production modules and subsea modules in the oil and gas industry; Construction of structures for ...

Oil and gas well downhole survey and measurement equipment; Oil level sensors; Oil well Christmas trees in the nature of an assembly of valves, spools, and fittings that control the flow of oil or gas out of a well; Automated process control system, namely, micro-processor based hardware and software used to monitor the status of industrial processes, namely, power generation, electrical distribution and oil and gas processing; Automatic valves for oil and gas surveying, measuring, producing,...

Oil exploration; Oil field exploration; Oil field surveying; Oil prospecting; Oil prospecting, namely, well logging and testing; Oil well testing; Oil-field surveys; Oil-well testing; Analysis for oil research; Analysis for oil-field exploitation; Analysis of oil fields; Analysis of oil soakings; Analysis services for oil field exploration; Conducting wellbore survey services for the oil and gas, energy, mining, environmental and construction industries; Consultation in the field of auxiliar...

[ 3D camera systems, namely, adapters for allowing 3D shooting; ] Anti-dazzle spectacles; Anti-glare spectacles; Audiovisual receivers; [ Camera filters; ] [ Cases for spectacles and sunglasses; Cases for spectacles, for pince-nez and for contact lenses; Chains for spectacles; ] Chains for spectacles and for sunglasses; [ Digital book readers; Electronic book reader; ] Eyeglasses; [ Filters for optical devices; Fluorescent screens; ] Frames for spectacles; Frames for spectacles and pince-nez;...

Optical glasses; Theatre glasses; Viewing devices, namely, digital photograph viewers, 3D digital photograph viewers, underwater digital photograph viewers, underwater 3D digital photographs viewers, underwater LCD displays, underwater enclosures for LCD displays and underwater enclosures for video players