DIFF Subgroup
F21S 41/162 Incandescent light sources, e.g. filament or halogen lamps
Introduced: January 2018
Full Title
Full titles differ between systems:
IPC:
Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps > characterised by the light source > characterised by the type of light source > Incandescent light sources, e.g. filament or halogen lamps
CPC:
Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps (reversing lights F21S43/00) > characterised by the light source > characterised by the type of light source > Incandescent light sources, e.g. filament or halogen lamps
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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- F21S 41/168 having a filament arranged transversally to the optical axis of the illuminating device since 2018 IPC+CPC Available in IPC and CPC