Electrical protection apparatus

Electrical spark gap apparatus

Electrical spark treatment apparatus

Electrical surge arrester

Electrical testing instrument

Electrical-discharge electrodes and devices incorporating same

Electrically-ignited gas lighter

Electrode material for a spark plug

Electrostatic apparatus for removing entrained particulate...

Elevator safety device

Encapsulated spark gap and method of manufacturing

Enclosed lighting arrester

Engine ignition apparatus

Engine ignition apparatus

Engine ignition apparatus

Engine ignition apparatus

Engine ignition device

Engine ignition system with an insulated and extendable...

Excitation apparatus with discharge between opposing...

Explosion-proof lightning arrester