Charging device

Cigar lighter

Coaxial lightning arresting structure

Coaxial lightning arresting sturcture

Coaxial transmission line surge arrestor

Coaxial twin sparkle plug

Communications circuit line protector and method of making...

Compact voltage surge arrester device

Composite center electrode for a spark plug and method of...

Composite spark plug

Compound lightning arrester for low voltage circuits

Connecting assembly for spark plug of internal combustion...

Connector block for telephone equipment

Contact glass composition for use in spark plugs

Contact-breaking ignition plug and method of generating a...

Copper core side electrode spark plug shell

Corona apparatus

Corona charging apparatus

Corona charging apparatus

Corona current measurement and control arrangement