73744508
Aug 8, 1988
Mar 14, 1989
ELECTRIC MOTORS AND ELECTRO MECHANICAL PRESS DRIVES; ELECTRO-MAGNETIC CLUTCHES OR COUPLINGS FOR USE AS ELECTRICAL VARIABLE SPEED TRANSMISSIONS; EDDY CURRENT CLUTCHES AND BRAKES; ADJUSTABLE FREQUENCY DRIVES
MachineryDYNAMOMETERS; ELECTRICAL PULSE COUNTERS; EDDY CURRENT AND ADJUSTABLE FREQUENCY CONTROLLER UNITS
Electrical and Scientific Apparatus