CPC Subgroup
A01B 3/34 with parallel plough units used alternately
Full Title
Ploughs with fixed plough-shares > Tractor-drawn ploughs (A01B3/04 takes precedence) > Alternating ploughs > with parallel plough units used alternately
A01B 3/34 Ploughs with fixed plough-shares > Tractor-drawn ploughs (A01B3/04 takes precedence) > Alternating ploughs > with parallel plough units used alternately