DIFF Main Group
A23J 3/00 Working-up of proteins for foodstuffs
Introduced: September 1968
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- A23J 3/20 Proteins from microorganisms or unicellular algae since 1990 IPC+CPC Available in IPC and CPC