Details

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Pressure vessels; Containment vessels; Containment in general > Details

CPC:

Pressure vessels; Containment vessels; Containment in general (for chemical or physical processes B01J3/00; pressure vessels in general F16J12/00) > Details

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G21C 13/022 CPC only CPC only
G21C 13/024 Supporting constructions for pressure vessels or containment vessels since 1990 IPC+CPC Available in IPC and CPC
G21C 13/028 Seals, e.g. for pressure vessels or containment vessels since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G21C 13/032 Joints between tubes and vessel walls, e.g. taking into account thermal stresses since 1990 IPC+CPC Available in IPC and CPC
G21C 13/04 Arrangements for expansion and contraction IPC+CPC Available in IPC and CPC
G21C 13/06 Sealing-plugs (for pressure vessels in general F16J13/00) +1 CPC IPC+CPC Available in IPC and CPC