发明名称 Dibber drills.
摘要 <p>A dibber assembly 10 comprises a radial array of dibber elements 30 the feed of seed to which is preferably controllable to allow for different seed spacings. A quick in-and-out motion of the dibber elements into the ground is ensured by the beak-shaped portion 56 of a cam track 36.</p>
申请公布号 EP0320248(A1) 申请公布日期 1989.06.14
申请号 EP19880311605 申请日期 1988.12.08
申请人 NATIONAL RESEARCH DEVELOPMENT CORPORATION 发明人 BROWN, FRANK RAYMOND;FROST, DEREK JOHN
分类号 A01C7/00 主分类号 A01C7/00
代理机构 代理人
主权项
地址