DIFF Subgroup
A01D 45/021 Full Title
Harvesting of standing crops (A01D44/00 takes precedence; threshing machines adapted for special crops, threshing devices for combines adapted for special crops A01F11/00; harvesting of mushrooms A01G18/70) > of maize
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.