75470791
Apr 20, 1998
Nov 28, 2000
ENERGY MANAGEMENT SYSTEM, NAMELY, AUTOMATIC METER READER CONSISTING OF RECEIVER, TRANSMITTERS (SINGLE PHASE AND THREE PHASE), SYSTEM SOFTWARE AND OPTOELECTRONIC WAND; END OF LINE VOLTAGE MONITOR FOR USE WITH AUTOMATIC METER READER; PHASE TRACER SYSTEM, NAMELY, A RECEIVER AND A TRANSMITTER FOR IDENTIFYING THE PHASE OF AN ENERGIZED CONDUCTOR; POWER QUALITY REPORTING EQUIPMENT, NAMELY, END OF LINE VOLTAGE MONITOR AND TRANSMITTER
Electrical and Scientific ApparatusPOWER QUALITY REPORTING SERVICES, NAMELY, MONITORING ELECTRIC METERS AND END OF LINE VOLTAGE MONITORS, AND ELECTRIC SUBSTATIONS, AND TRANSMITTING DATA INCLUDING TRANSMITTER SINGLE STRENGTH, POWER LINE VOLTAGE, POWER OUTAGES AND BLINK COUNTS, AND SUBSTATION OUTAGES, VIA POWER LINE TO A CENTRAL MONITORING STATION
Computer and Scientific