Scandium halide and alkali metal halide discharge lamp
Seal construction arrangement for an electrodeless high intensit
Sealed beam headlamp and method for testing its serviceability
Sheet metal support for dual arc discharge lamps and method of m
Shrouded electric lamp having functionally distinguishable...
Single based electric lamp
Single-based high-pressure discharge lamp
Single-based high-pressure discharge lamp with a heat retention
Single-based incadescent lamp construction
Single-ended compact halogen discharge lamp and reflector combin
Sodium vapor lamp for sonic pulse operation
Sodium vapor lamp with emission aperture
Stabilized high intensity discharge lamp
Stain resistant fluorescent lamp
Sun lamp