F16B 13/141 Full Title
Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose (nails F16B15/00; self-locking pins or bolts in general, stud-and-socket releasable fastenings F16B21/00; dowels or bolts for railroad sleepers E01B9/00; ans means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D5/74; bolts or dowels used while laying bricks or casting concrete sleepers E04B1/38; setting anchoring bolts in shafts, tunnels or galleries E21D20/00; anchoring bolts for shafts, tunnels or galleries E21D21/00) > Non-metallic plugs or sleeves ; Use of liquid, loose solid or kneadable material therefor
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.