CPC Subgroup
G21C 13/067 for tubes, e.g. standpipes; Locking devices for plugs
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) > for tubes, e.g. standpipes; Locking devices for plugs
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