DIFF Subgroup
G21F 1/04 Concretes; Other hydraulic hardening materials
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Shielding characterised by the composition of the material > Selection of uniform shielding materials > Concretes; Other hydraulic hardening materials
CPC:
Shielding characterised by the composition of the materials > Selection of uniform shielding materials > Concretes; Other hydraulic hardening materials
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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