Damping device for circuit interrupters
Damping mechanisms
Data input device with variable-colour illumination
Data storage module selector assembly
Dc circuit breaking device
De-energized tap changer for transformers
De-energizing system for thermal actuator
Dead tank circuit breaker
Dead tank gas-insulated puffer-type circuit interrupter...
Dead tank housing for high voltage circuit breaker employing...
Defeatable access door interlock for circuit breaker enclosure
Defeater for mechanical safety interlock for covers of...
Defeater lock for electrically operated circuit breaker
Deflecting end-plate construction for vacuum-type circuit...
Deflection web for a keypad assembly
Defrost control mechanism
Defrost control system and control device therefor or the like
Defroster
Defroster control or the like
Deicing apparatus for jet engines