Laminated current surge protector

Large current watchdog circuit for a photodetector

Large generator protective relaying scheme

Laser scalpel provided with a safety device

Latching and release system for ground fault receptacle

Leakage current detector interrupter with reset lockout

Leakage current protection device adapted to a wide variety...

Lightening arrestor insulator and method of producing the same

Lightning arrester

Lightning arrester device for power transmission line

Lightning arrester equipped with mobile varistor supporting...

Lightning arrester for aerial electric power lines

Lightning arrestor

Lightning arrestor device for high power electric installations

Lightning protected electric fence controller system and method

Lightning protection apparatus for rf equipment and the like

Lightning protection systems

Lightning resistive device in aerial power transmission system

Ligthning protection device for electrical lines

Limiting energy in wiring faults