DIFF Subgroup
E06B 3/7003 Full Title
Window sashes, door leaves, or like elements for closing openings; Layout of fixed or moving closures, e.g. windows ; Features of rigidly-mounted outer frames relating to the mounting of wing frames (E06B5/00 takes precedence; shutters or the like E06B9/00; glass panes C03) > Door leaves (wing frames E06B3/04)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.