发明名称 Gravity actuated guiding device for farm machines
摘要 A gravity-actuated guide for row crops which mounts on a tractor front axle to enable the operator to compensate for changes in transverse slope by steering the tractor and thereby correctly position cultivating equipment behind the tractor in relation to the rows.
申请公布号 US4363174(A) 申请公布日期 1982.12.14
申请号 US19800176994 申请日期 1980.08.11
申请人 CURTIS, RALPH H. 发明人 CURTIS, RALPH H.
分类号 A01B15/20;B62D15/02;(IPC1-7):B62D15/02 主分类号 A01B15/20
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