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7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
equipment for oil and gas wells, namely, perforators, nozzles, jetting devices, bits, flow directors, flow control devices, borehole fishing devices, plugs, conveyance devices, wellbore tractors, diverters, packers, sleeves, liners, junctures
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9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
software to improve well and reservoir performance to maximize, extend, and optimize recovery and reservoir drainage to in the field of oil, gas, geothermal, and water wells used in association with coil tubing, wireline, slickline, capillary tubing, jointed pipe, solid rods; electric, hydraulic or fiber optic sensors; flow, depth or position monitors; and automatic valves
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40
Treatment of materials
oil, gas, geothermal and water well drilling services; technical consulting in the field of production of oil, gas, geothermal, and water wells to maximize, extend, and optimize recovery and reservoir drainage in association with coil tubing, wireline, slickline, capillary tubing, jointed pipe, and solid rods, matrix and fracture stimulation, wellbore cleanout, logging, wellbore profiling, plug-and-abandonment, perforating, nitrogen kickoff, sand control, drilling, cementing, well circulation, and mechanical isolation; consulting in the design and development of hardware and software in the field of production of oil, gas, geothermal, and water wells to maximize, extend, and optimize recovery and reservoir drainage in association with coil tubing, wireline, slickline, capillary tubing, jointed pipe, and solid rods, matrix and fracture stimulation, wellbore cleanout, logging, wellbore profiling, plug-and-abandonment, perforating, nitrogen kickoff, sand control, drilling, cementing, well circulation, and mechanical isolation