DIFF Subgroup Additional Only
E04F 2201/02 Non-undercut connections, e.g. tongue and groove connections
Full Title
Joining sheets or plates or panels > Non-undercut connections, e.g. tongue and groove connections
Of 6 combined children, 0 exist in both systems.
6 codes are CPC-only extensions.
Note: 6 CPC extensions are marked as secondary classification only.