DIFF Subgroup
F16F 9/0209 Full Title
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium (F16F5/00 takes precedence; connection of valves to inflatable elastic bodies B60C29/00; ) > using gas only
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.