DIFF Subgroup
F16J 15/068 Full Title
Sealings > between relatively-stationary surfaces (F16J15/46, F16J15/48 take precedence) > with solid packing compressed between sealing surfaces
F16J 15/068 Sealings > between relatively-stationary surfaces (F16J15/46, F16J15/48 take precedence) > with solid packing compressed between sealing surfaces