DIFF Subgroup
G21C 11/02 Biological shielding (in general G21F )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Biological shielding
CPC: Biological shielding (in general G21F )
Full Title
Full titles differ between systems:
IPC:
Shielding structurally associated with the reactor > Biological shielding
CPC:
Shielding structurally associated with the reactor > Biological shielding (in general G21F )
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open