DIFF Subgroup
C08B 31/06 of inorganic acids
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Preparation of chemical derivatives of starch > Esters > of inorganic acids
CPC:
Preparation of derivatives of starch (derivatives of amylose C08B33/00; derivatives of amylopectin C08B35/00) > Esters > of inorganic acids
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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