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Equipment used in oil or gas well production or drilling services, namely, pumps, pump accessories; motors, motor accessories, and motor components; power generators; centrifugal pumps; submersible pumps; packet pumps in the nature of centrifugal pumps constructed of hardened alloys and high performance thermoplastics; multi-phase screw pumps; surface horizontal pumping systems comprising centrifugal pumps and electric motors mounted on skids; electric submersible induction motors, not for land vehicles; electric submersible permanent magnet motors, not for land vehicles; variable frequency drives for pumping systems for use in oil and gas well production; Surface power equipment in the nature of electric power generators used to provide electric power to a downhole motor, for use in oil and gas well production.Electric frequency converter for controlling the speed of an electric motor; electric variable speed controller for oilfield surface and downhole wellbore equipment; electronic controller for use in the oil and gas industry for monitoring wellbore data, data from surface equipment, and data from wellbore equipment; electronic downhole sensors for detecting operating parameters downhole in a well using artificial lift; subsurface oilfield gauges, including gauges that can be used to detect temperature, pressure, vibration, and movement of selected items or in select areas of a wellbore; electric motor frequency converters; sensors and gauges for use in oil or gas well production or drilling; devices for monitoring wellbore data, including pressure and temperature, and vibration.Drilling services for oil or gas; servicing oilfield equipment, namely, rebuilding and repairing worn or partially destroyed electric motors and other worn or partially destroyed oilfield equipment.Oil and gas production services.Technological and engineering services, namely, providing technical project studies, researching product development, testing of oilfield equipment and their components, and designing computer software.