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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; ) > Details > Special means providing automatic damping adjustment, (F16F9/53 takes precedence); > Means responsive to load action, on the damper or fluid pressure in the damper,