|
PL281374A1
|
|
Method for investigating durability of fluorescent lamps
|
|
PL280993A1
|
|
Glow discharge electrode assembly for high-pressure sodium-vapour tubes
|
|
PL280992A1
|
|
Halogen lamp
|
|
PL280678A1
|
|
Method of jointing electrode assembly to hight-pressure sodium-vapour tubes
|
|
PL280679A1
|
|
Glow-electrode assembly for high-pressure sodium-vapour tubes
|
|
PL269807A1
|
|
Method of welding lead-in wires down to bulb caps
|
|
PL257585A1
|
|
Method of fusing lighting lamp bulbs together with their electrode sets and apparatus therefor
|
|
PL257584A1
|
|
Method of shaping and severing into segments glass tubesin particular for making bulbs of h-4 halogen lamps and apparatus therefor
|
|
PL256338A1
|
|
Method of obtaining granulated aluminium oxide as material for making translucent elements in particular fluorescent lamp tubes
|
|
PL254725A1
|
|
Method of evacuating discharge lamp bulbs or tubes in particular those of mercury lamps
|
|
PL254726A1
|
|
Method of connecting attenuators into power supply circuits of discharge-type light sources during manufacturing process of such sources
|
|
PL254512A1
|
|
Semiconductor digital display
|
|
PL247640A1
|
|
Single-jacket halogen projector lamp in particular for writting projectors
|
|
PL246190A1
|
|
Lamp cap,especially of twin-filament tungsten halogen lamp
|
|
PL241876A1
|
|
Method of making cuvettes and crucibles for sintering luminophores
|
|
PL241877A1
|
|
Incandescent lamp base in particular for halogen filled lamps
|
|
PL241045A1
|
|
Apparatus for fusing filament set,especially of halogen car lamps,together with glass bulb of the lamp
|
|
PL240830A1
|
|
System of automatic vacuum monitoring in the process of pumping,especially of glowers of mercury discharge lamps in automatic pumping machine
|
|
PL239556A1
|
|
Apparatus for fixing metal strip aroun the filament of luminescent light source,especially of fluorescent lamp
|
|
PL238292A1
|
|
Method of making of spirals,especially of filament spirals for light sources and apparatus therefor
|
