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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.
oil and gas field production equipment and completion products, namely, oil field artificial lift products, namely, beam pumping units; gas lift systems consisting of gas lift valves, mandrels and latches, all sold as a unit; oil and gas drilling plunger lift systems consisting of plungers, springs, tubing stops, plunger lifts, all sold as a unit; oil and gas field completion equipment, namely, gas filters, sensor switches, control pilots and plug seals and couplings, all sold as a unit; oil and gas well packers; power transmission products other than for land vehicles, namely, high and low-speed gearboxes and bearing assemblies
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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.
electronic well-automation systems consisting of rod pump controllers, injection well controllers, progressing cavity pump controllers, variable speed drives for rod pump and progressing cavity pumps and motor control panels, all sold as a unit; well analysis systems consisting of electronic control equipment and computer operating systems used for oil and well production optimization, all sold as a unit
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37
Building construction; repair; installation services
installation, maintenance, troubleshooting and repair of oil and gas equipment; technical support services, namely, troubleshooting in the nature of repair of oil and gas field drilling equipment
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42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software
custom design and engineering of oil and gas field drilling equipment; new product design and equipment optimization services for the oil and gas industry; monitoring of oil and gas field drilling equipment