CPC Subgroup
G21C 13/06 Sealing-plugs (for pressure vessels in general F16J13/00)
Full Title
Pressure vessels; Containment vessels; Containment in general (for chemical or physical processes B01J3/00; pressure vessels in general F16J12/00) > Details > Sealing-plugs (for pressure vessels in general F16J13/00)
3 direct subcodes
Child Classifications
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- G21C 13/067 for tubes, e.g. standpipes; Locking devices for plugs
- G21C 13/073 Closures for reactor-vessels, e.g. rotatable