Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H05B 41/23

for lamps not having an auxiliary starting electrode

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Circuit arrangements or apparatus for igniting or operating discharge lamps > Circuit arrangements > in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC > having no starting switch > for lamps not having an auxiliary starting electrode

CPC:

Circuit arrangements or apparatus for igniting or operating discharge lamps (structurally associated with the discharge lamps H01J61/54, H01J61/56) > Circuit arrangements > in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC > having no starting switch > for lamps not having an auxiliary starting electrode

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

Navigate with arrow keys, Enter to open

  • H05B 41/231 for high-pressure lamps IPC+CPC Available in IPC and CPC