DIFF Subgroup
A23B 4/20 Organic compounds; Microorganisms; Enzymes
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Preservation of meat, sausages, fish or fish products > Preserving with chemicals not covered by groups or > in the form of liquids or solids > Organic compounds; Microorganisms; Enzymes
CPC:
Preservation of meat, sausages, fish or fish products > Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 > in the form of liquids or solids (apparatus therefor A23B4/26, A23B4/32) > Organic compounds; Microorganisms; Enzymes
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1990.
Child Classifications
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