75737528
Jun 25, 1999
Sep 11, 2001
OIL FIELD PUMPING EQUIPMENT, NAMELY, COMPUTERIZED CONTROL DEVICES, NAMELY, WELL MONITORS, DYNAMOMETERS, AND PUMP OFF CONTROLLERS FOR ARTIFICIAL LIFT SYSTEMS USED TO REMOVE OIL OR GAS FROM AN OIL OR GAS WELL; COMPUTER SOFTWARE USED TO MONITOR FOR USE IN CONNECTION WITH CONTROL DEVICES, NAMELY WELL MONITORS, DYNAMOMETERS, AND PUMP OFF NAMELY WELL MONITORS, DYNAMOMETERS, AND PUMP OFF CONTROLLERS USED IN ARTIFICIAL LIFT SYSTEMS USED TO REMOVE OIL OR GAS FROM AN OIL OR GAS WELL
Electrical and Scientific Apparatus