Three phase light bulb
Tungsten halogen incandescent lamp having an improved mounting s
Tungsten halogen incandescent lamp with arc preventing fill
Tungsten halogen incandescent lamps containing mixed halogens
Tungsten halogen lamp
Tungsten halogen lamp base
Tungsten halogen lamp containing cyanogen
Tungsten halogen lamp having a fine-wire filament and a hydrogen
Tungsten halogen lamp including phosphorous and bromine
Tungsten halogen lamp with heat-dissipating base
Tungsten halogen lamp with infrared reflecting film and...
Tungsten halogen lamp with specific fill material, fill pressure
Tungsten-halogen incandescent and metal vapor discharge lamps an
Tungsten-halogen incandescent lamp containing additive to reduce
Tungsten-halogen lamp with means for reducing filament embrittle
Tungsten-halogen lamp with organic and inorganic getters
Tungsten-halogen lamp with preferential tungsten deposition site