Gas-filled lightning arrester having copper electrodes
Gas-filled overvoltage charge eliminator
Gas-filled surge arrester with an activating compound formed...
Gas-filled, three-electrode surge arrester for high contact...
Gas-tube surge protective device and method for making the...
Heat protection device for overvoltage arrester magazines...
Heat shielded spark plug boot assembly
Heat shielded, spark plug boot assembly
Heat transfer system for voltage surge arresters
High frequency ozonizer
High performance blocking electrode for photoelectrophoresis
High potential detector
High tension cable device
High voltage surge diverter
High-frequency tubular ozonizer
Igniter
Igniter for fuel burners
Igniter for gas burners
Igniter plug with improved electrode
Igniter plug with spark-sensing means