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发明名称
MAINTAINING SEED DRILL OPENER AT CONSTANT DEPTH BY CONSTANTLY MONITORING SOIL REACTION FORCE ON GAUGE WHEEL
摘要
申请公布号
NZ227221(A)
申请公布日期
1992.11.25
申请号
NZ19880227221
申请日期
1988.12.06
申请人
MASSEY UNIVERSITY
发明人
BAKER, CHRISTOPHER JOHN;BROWN, STEVEN WAYNE;KERNOHAN, CRAIG DAVID
分类号
A01C5/06;(IPC1-7):A01C5/06;G01L5/22
主分类号
A01C5/06
代理机构
代理人
主权项
地址
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