76235932
Apr 5, 2001
Jun 24, 2003
INDUCTION AND DIRECT CURRENT MOTORS, SYNCHRONOUS MOTORS AND ELECTRICAL GENERATORS FOR POWERING OF INDUSTRIAL MACHINERY
MachineryLOW VOLTAGE AND MEDIUM VOLTAGE VARIABLE FREQUENCY DRIVES FOR THE CONTROL OF INDUCTION AND SYNCHRONOUS MOTORS; DIRECT CURRENT DRIVES FOR THE CONTROL OF DC MOTORS; ELECTRICAL POWER SUPPLIES AND ELECTRICAL POWER CONTROL SYSTEMS COMPRISED OF ELECTRICAL TRANSFORMERS, POWER SEMICONDUCTORS, DC AND AC POWER CONVERTERS, AND CONTROL CIRCUITRY FOR THE CONTROL OF STATIC INDUSTRIAL PROCESS APPLICATIONS; APPLICATION SOFTWARE FOR THE CONTROL OF VARIABLE FREQUENCY AND DIRECT CURRENT DRIVES IN INDUSTRIAL APPLICATIONS
Electrical and Scientific ApparatusINSTALLATION AND REPAIR OF LOW VOLTAGE AND MEDIUM VOLTAGE VARIABLE FREQUENCY DRIVES, DIRECT CURRENT DRIVES, INDUCTION AND DIRECT CURRENT MOTORS AND GENERATORS FOR POWERING OF INDUSTRIAL MACHINERY, ELECTRICAL POWER SUPPLIES AND POWER CONTROL SYSTEMS FOR THE CONTROL OF STATIC INDUSTRIAL PROCESS APPLICATION
Building Construction and RepairINSTALLATION AND REPAIR OF APPLICATION SOFTWARE FOR THE CONTROL OF VARIABLE FREQUENCY AND DIRECT CURRENT DRIVES IN INDUSTRIAL APPLICATIONS
Computer and Scientific