DIFF Subgroup
F16J 15/182 Full Title
Sealings > between relatively-moving surfaces (F16J15/50, F16J15/52 take precedence; bellows pistons F16J3/06; piston-rings or ring sealings of similar construction F16J9/00) > with stuffing-boxes for elastic or plastic packings
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.