Electric lamp having an undercoat for increasing the light outpu

Electric lamp having fluorescent lamp colors containing a wide b

Electric lamp with a threaded electrode

Electric lamp with composite safety coating and process of manuf

Electric light bulb

Electrode device for electric discharge tube

Electrode for external electrode fluorescent lamp providing impr

Electrodeless discharge lamp

Electrodeless discharge lamp

Electrodeless discharge lamp

Electrodeless discharge lamp and apparatus to prevent...

Electrodeless fluorescent lamp

Electrodeless fluorescent lamp

Electrodeless fluorescent lamp having a reduced run-up time

Electrodeless fluorescent lamp with cold spot control

Electrodeless fluorescent lamp with one-piece electrically insul

Electrodeless gas discharge lamp having flat induction coil...

Electrodeless lamp with profiled wall thickness

Electrodeless low-pressure discharge lamp having a straight exha

Electrodeless low-pressure mercury vapor discharge lamp