DIFF Main Group
H05B 39/00 Circuit arrangements or apparatus for operating incandescent light sources (structurally associated with the incandescent lamps H01K1/62)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Circuit arrangements or apparatus for operating incandescent light sources
CPC: Circuit arrangements or apparatus for operating incandescent light sources (structurally associated with the incandescent lamps H01K1/62)
Full Title
Full titles differ between systems:
IPC:
Circuit arrangements or apparatus for operating incandescent light sources
CPC:
Circuit arrangements or apparatus for operating incandescent light sources (structurally associated with the incandescent lamps H01K1/62)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H05B 39/02 Switching on, e.g. with predetermined rate of increase of lighting current IPC+CPC Available in IPC and CPC
- H05B 39/10 Circuits providing for substitution of the light source in case of its failure +1 CPC IPC+CPC Available in IPC and CPC