75243234
Feb 18, 1997
Jun 8, 1999
components of plunger lift gas and oil wells, namely, plungers, lubricators, valves, chokes, plunger springs, tubing stops, and sensor housings being parts of lubricators and nipples
Machineryelectornic controllers, plunger sensors, photovoltaic solar panels for providing electricity to controllers, and tank level sensors, all for plunger lift gas and oil wells
Electrical and Scientific Apparatus