| 发明名称 |
Selective pivotal mounting arrangement for coulters |
| 摘要 |
A mounting arrangement for fertilizer coulters including a selective locking mechanism whereby, at the option of the operator, the coulter may be permitted to pivot about the coulter supporting shank or be locked in place.
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| 申请公布号 |
US4759411(A) |
申请公布日期 |
1988.07.26 |
| 申请号 |
US19860939944 |
申请日期 |
1986.12.09 |
| 申请人 |
YETTER MANUFACTURING COMPANY |
发明人 |
WILLIAMSON, GERALD E. |
| 分类号 |
A01B15/18;A01C5/06;(IPC1-7):A01B35/28;A01B61/04 |
主分类号 |
A01B15/18 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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