85752588
Oct 12, 2012
Oil well and gas well pumping machines, and hydraulic surface units for rod-pumped oil wells and gas wells, namely, systems of hydraulic drives, hydraulic cylinders, hydraulic pumps, motors, valves, sensors, switches, and electronic controls
MachineryControl systems and monitoring systems for oil well and gas well pumping equipment and installations, namely, electronic and hydraulic control systems for rod-pumped oil wells and gas wells, and prime mover monitoring, tank level monitoring, natural gas flow rate monitoring, and well location video surveillance equipment; electronic sensors for sensing position, pressure, temperature, voltage, and amperage for oil well and gas well pumping equipment; electric switches; electronic control systems for machines
Electrical and Scientific Apparatus