DIFF Subgroup Additional Only
F21W 2131/20 Lighting for medical use
Full Title
Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00 > Lighting for medical use
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.