Dual-control for controlling the liquid level in a...
Dual-range thermostatic device
Dumping control method and device for electrical heating...
Duplex liquid handling apparatus having improved...
Duplex speed regulator
Duplex speed regulator
Dust arrester liquid level control
Duty cycle translator for adaptive braking control circuit
Dynamic brake blending for an inverter propulsion system
Dynamic gas blending
Dynamic self-monitoring air operating system
Dynamic weight control system