Clod crumbler |
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| 申请号 | EP88307038.5 | 申请日 | 1988-07-29 | 公开(公告)号 | EP0305056A3 | 公开(公告)日 | 1989-06-28 |
| 申请人 | NATIONAL RESEARCH DEVELOPMENT CORPORATION; | 发明人 | Cope, Richard Edward; | ||||
| 摘要 | A crumbler roller device 10 comprises two co-axial soil-engaging rotors 12,13 mounted one within the other and drive means operative to drive the inner rotor 12 at a different rotational speed to the outer rotor 13. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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