DIFF Subgroup
F17C 3/025 Full Title
Vessels not under pressure > with provision for thermal insulation (thermal insulation in general F16L59/00 )
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
F17C 3/025 Vessels not under pressure > with provision for thermal insulation (thermal insulation in general F16L59/00 )
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.