Device for simultaneously controlling a set of variable...

Device having at least one ptc resistor

Device having rotary knobs extending partially through a...

Devices comprising conductive polymers

Dimmer switch

Directionally vented underground distribution surge arrester

Disc type thermistor for high temperature measurement and...

Display device for simultaneously variable resistor controller

Dispositif d'asservissement a resistance liquide de valeur...

Dual control system

Dual side by side control unit

Electric brake controller

Electric conductor and method

Electric current control device

Electric current control valve

Electric laminar resistor and method of making same

Electric liquid rheostats

Electric resistance unit with a flexible metal mounting means

Electric resistor having a resistance body of silicon...

Electric switch combined with variable resistor