DIFF Subgroup
C01B 7/19 Fluorine; Hydrogen fluoride
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Halogens; Halogen acids > Fluorine; Hydrogen fluoride
CPC:
Halogens; Halogen acids (oxyacids C01B11/00) > Fluorine; Hydrogen fluoride
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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