|
GB833412A
|
|
Improvements in and relating to fluorescent lamp fittings
|
|
GB678314A
|
|
Improvements in or relating to holders for tubular electric lamps
|
|
US2554648A
|
|
Circuit arrangement for electric discharge lamps
|
|
GB674188A
|
|
Improvements in or relating to electric transformer arrangements for use in the circuit of electric discharge lamps
|
|
GB674249A
|
|
Improvements in or relating to discharge lamp circuits
|
|
GB669655A
|
|
Improvements in or relating to means for operating electric discharge lamps
|
|
GB674077A
|
|
Improvements in or relating to the manufacture of fluorescent material
|
|
GB674148A
|
|
Improvements in or relating to means for controlling the circuit of a discharge lamp
|
|
GB710072A
|
|
Improvements in or relating to electric discharge lamps
|
|
GB661706A
|
|
Improvements in or relating to the manufacture of ballast transformers for use in the circuits of electric discharge lamps
|
|
GB661597A
|
|
Improvements in and relating to holders for tubular electric lamps
|
|
GB662556A
|
|
Improvements in and relating to holders for tubular electric lamps
|
|
GB659921A
|
|
Improvements in or relating to starting and operating a plurality of serially connected discharge lamps
|
|
GB660474A
|
|
Improvements in or relating to choke coil assemblies for use in discharge lamp circuits
|
|
GB661892A
|
|
Improvements in or relating to circuit arrangements for electric discharge lamps
|
|
GB649816A
|
|
Improvements in or relating to electric transformers
|
|
GB648108A
|
|
Improvements in or relating to starting devices and circuits for electric discharge lamps
|
|
GB647995A
|
|
Improvements in or relating to current limiting devices or choke coils
|
|
GB644274A
|
|
Improvements in or relating to electric discharge lamp circuits
|
|
GB643637A
|
|
Improvements in or relating to ballasts for use in the circuits of electric discharge lamps
|
