76687823
Mar 18, 2008
IN POLY-PHASE ELECTRICAL POWER DISTRIBUTION SYSTEMS, ELECTRICAL HARDWARE AND SOFTWARE USED WITH BROADBAND COMMUNICATION SYSTEMS FOR TELEPHONE, INTERNET, AND TELEVISION; AND ELECTRONIC HARDWARE AND SOFTWARE USED IN ASSOCIATION WITH TESTING TO DETERMINE PHASE RELATIONSHIPS ON HIGH VOLTAGE CIRCUITS IN POLY-PHASE ELECTRICAL POWER DISTRIBUTION SYSTEMS; AND PROTECTIVE RELAY AND CONTROL PANELS
Electrical and Scientific Apparatus