DIFF Subgroup
A01B 13/025 Full Title
Ploughs or like machines for special purposes (for drainage E02B11/02) > for making or working ridges, e.g. with symmetrically arranged mouldboards
A01B 13/025 Ploughs or like machines for special purposes (for drainage E02B11/02) > for making or working ridges, e.g. with symmetrically arranged mouldboards