DIFF Subgroup
B22C 1/18 of inorganic agents
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds > characterised by the use of binding agents; Mixtures of binding agents > of inorganic agents
CPC:
Compositions of refractory mould or core materials; Grain structures thereof (refractory materials in general C04B35/00); Chemical or physical features in the formation or manufacture of moulds > characterised by the use of binding agents; Mixtures of binding agents > of inorganic agents
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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