73241461
Dec 3, 1979
Aug 4, 1981
Electricity Load and Rate Managing, Management Supervising, Changing, Measuring, Monitoring, Optimizing, Testing, Signaling and Controlling Systems-Namely, Control Station, Computers, Injection Units, Meters, Sensors, Registers, Servo Units, Switches, Indicators, Transmitters, Receivers, Signalers, and Controllers
Electrical and Scientific Apparatus