75666130
Mar 23, 1999
Dec 4, 2001
ELECTRIC POWER RESEARCH INSTITUTE INC.
Active Trademark
DEVICES FOR USE IN INTERCONNECTING STAND-BY ELECTRICITY GENERATORS DURING A POWER OUTAGE; NAMELY A TRANSFER SWITCH; DEVICE FOR USE IN CONNECTING ON-SITE POWER SOURCES THAT OPERATE IN PARALLEL WITH COMMERCIAL POWER, NAMELY AN INTERCONNECTION TIE FOR ONE WAY OR TWO WAY POWER FLOW
Electrical and Scientific Apparatus