Incandecent lamp having high resistance to filament damage from
Incandescent lamp having an illuminant that contains a...
Incandescent lamp having an improved axial mounting structure fo
Incandescent lamp having filament with polygonal turns
Incandescent lamp having improved filament support structure
Incandescent lamp having two lead-in conductors sealed within on
Incandescent lamp having two lead-in conductors sealed within on
Incandescent lamp mount structure with shield for evaporation pr
Infrared lamp with carbon ribbon being longer than a...
Infrared thermal lamp