74222421
Nov 18, 1991
Jan 18, 1994
industrial electrical controls, electrical numerical controls, web tension controls, web tension gages, electronic force transducers, electro-acoustic position sensors for use in machines, servo amplifiers, tachometers, encoders, motor position controllers, photo-electric tracers, height sensors and controls, electronic controls for shape cutting equipment, and software programs for industrial controls
Electrical and Scientific Apparatus