75567362
Jul 26, 1999
Apr 17, 2001
ELECTRIC DRIVE CONTROLLERS FOR LOW VOLTAGE AC DRIVE FOR ELECTRIC MOTORS USED PRIMARILY IN HEATING, VENTILATION AND AIR CONDITIONING SYSTEMS, PAPER MANUFACTURING MACHINES, DYNAMOMETERS, DOCK SIDE CRANES, HEAT PUMPS AND THE LIKE, AND COMPUTER SOFTWARE THEREFOR
Electrical and Scientific Apparatus