Constructional details

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Reactor fuel elements or their assemblies; Selection of substances for use as reactor fuel elements > Fuel elements > Constructional details

CPC:

Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements > Fuel elements > Constructional details

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

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G21C 3/041 CPC only CPC only
G21C 3/042 CPC only CPC only
G21C 3/044 CPC only CPC only
G21C 3/045 +2 CPC CPC only CPC only
G21C 3/06 Casings; Jackets IPC+CPC Available in IPC and CPC
G21C 3/16 Details of the construction within the casing IPC+CPC Available in IPC and CPC