77936023
Feb 15, 2010
Oil field equipment, namely, plunger lift systems consisting of plungers, plunger pads, springs, valves, hold down assemblies, tubing stops, collar stops, pressure gauges, lubricators, arrival sensors, wellhead controllers and data transmitters, and parts therefor
MachinerySoftware for monitoring and controlling oil field equipment such as plunger lift systems
Electrical and Scientific Apparatus