CGG

Devices for detecting, recording, and displaying signals, namely, medical instruments for detecting medical diseases by recording, processing, and displaying three-dimensional images of biological anatomy

Installation, construction, maintenance, upkeep and repair of scientific apparatus and instruments being computer hardware, seismic detectors, and seismic exploration machines for measuring, signaling, checking, acquiring, processing, imaging, and interpreting geophysical data, namely, seismic, magnetic, electromagnetic, gravimetric, and radiometric data and geological data with a view to the researching, exploration, exploitation, surveillance and optimization of natural resources of hydrocarbon and gas pools; drilling of wells; construction supervision by overseeing of construction work with a view to the researching, exploration, exploitation, surveillance and optimization of natural resources of hydrocarbon and gas pools; construction and maintenance of oil and gas pipelines; construction, plastering and cement work for energy generating installations in the geophysical fields of seismic, magnetic, electromagnetic, gravimetric, and radiometric fields and geological field