DIFF Subgroup
C01D 5/14 Preparation of sulfites (C01D5/04 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Preparation of sulfites
CPC: Preparation of sulfites (C01D5/04 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Sulfates or sulfites of sodium, potassium, or alkali metals in general > Preparation of sulfites
CPC:
Sulfates or sulfites of sodium, potassium or alkali metals in general > Preparation of sulfites (C01D5/04 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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