DIFF Subgroup
A23B 9/10 Freezing; Subsequent thawing; Cooling
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Preservation of edible seeds, e.g. cereals > Freezing; Subsequent thawing; Cooling
CPC:
Preservation of edible seeds, e.g. cereals (preservation of pulses A23B75/00) > Freezing; Subsequent thawing; Cooling
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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