DIFF Subgroup
F16B 21/073 Full Title
Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it (riveted or deformable spigots F16B19/04; for gudgeon pins F16J1/18); Stud-and-socket releasable fastenings > Releasable fastening devices with snap-action > in which the socket has a resilient part
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.