DIFF Subgroup
F21S 43/236 characterised by the shape of the light guide
Introduced: January 2018
Full Title
Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights > characterised by refractors, transparent cover plates, light guides or filters > Light guides > characterised by the shape of the light guide
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 2018.
Child Classifications
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