73707741
Jan 26, 1988
Sep 6, 1988
STATIC CONVERTERS, STATIC INVERTERS, STATIC RECTIFIERS, STATIC NOBREAK POWER SUPPLIES, POWER SUPPLIES FOR COMPUTER SYSTEMS, MICROUNITS FOR PROTECTING AGAINST DISTURBANCES OR VOLTAGE INTERRUPTION IN ELECTRIC POWER SUPPLES, SUPPLY INTERFACE UNITS
Electrical and Scientific Apparatus