发明名称 |
Coulter and fertilizer applicator linkage arrangement |
摘要 |
A parallel linkage arrangement for supporting a coulter disc and liquid fertilizer applicator on an agricultural tool bar such that the coulter disc and the fertilizer applicator maintain the same relative relationship to the ground regardless of vertical travel of the coulter disc or the applicator.
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申请公布号 |
US4947770(A) |
申请公布日期 |
1990.08.14 |
申请号 |
US19890377232 |
申请日期 |
1989.07.07 |
申请人 |
YETTER MANUFACTURING COMPANY |
发明人 |
JOHNSTON, MARK |
分类号 |
A01B15/18;A01B35/28;A01C23/02 |
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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