DIFF Main Group
H05B 47/00 Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
Introduced: January 2020
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 2020.
Child Classifications
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- H05B 47/20 Responsive to malfunctions or to light source life; for protection since 2020 IPC+CPC Available in IPC and CPC