Improved lightning arrestor based on electrical varistors
Improved multiple-core electrical ignition system cable
Improved polymeric ptc compositions
Improved potentiometer
Improved pulse step modulator
Improvements relating to electrical surge arresters
Improvements relating to electrical surge arresters
Indicating device for tuning apparatus
Indium oxide resistor inks
Insulating coating for surge arrester valve element
Insulator arrangement
Integrated resistor
Iron-nickel-chromium alloys and articles made thereof