DIFF Subgroup
F21S 41/37 characterised by their material, surface treatment or coatings
Introduced: January 2018
Full Title
Full titles differ between systems:
IPC:
Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps > characterised by reflectors > characterised by their material, surface treatment or coatings
CPC:
Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps (reversing lights F21S43/00) > characterised by reflectors > characterised by their material, surface treatment or coatings
No child classifications to compare. This is a leaf node in both IPC and CPC.