CPC Subgroup
A01B 3/42 Turn-wrest ploughs
Full Title
Ploughs with fixed plough-shares > Ploughs mounted on tractors > Alternating ploughs > Turn-wrest ploughs
2 direct subcodes
Child Classifications
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- A01B 3/421 with a headstock frame made in one piece
- A01B 3/426 with a headstock frame made of two or more parts