Ceramic enveloped electrical heating element
Device for protecting electric power resistances and anti-overpr
Drive apparatus for liquid crystal display device utilizing a fi
Electric heating device
Electric heating device having a metal sheath
Electric immersion heater
Electrical resistor component assembly which is hermetically sea
Electronic devices having reduced destruction of internal elemen
Gas permeable resistor casing
Infrared panel emitter and method of producing the same
Infrared radiator