Electric incandescent halogen lamp with barrel-shaped bulb
Electric incandescent lamp
Electric incandescent lamp
Electric incandescent lamp and method of manufacture therefor
Electric incandescent lamp for a motor-car
Electric incandescent lamp having filament sleeves engaged by en
Electric incandescent lamp with a quartz glass lamp vessel and q
Electric lamp having a current conductor with a kinked longitudi
Electric lamp with a holding frame for a lamp filament
Electrical incandescent lamps having hook-shaped coil holder wit
Electrically conductive cylinder for improved starting of compac
Electrically modulatable thermal radiant source and method for m
Explosion resistant tungsten-halogen incandescent lamp