DIFF Subgroup
A61H 3/061 Full Title
Appliances for aiding patients or disabled persons to walk about (apparatus for helping babies to walk A47D13/04 ) > Walking aids for blind persons (replacing direct visual perception by another kind of perception A61F9/08)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.