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发明名称
Improvements in Ploughs having Hydraulic Trip Bottoms
摘要
申请公布号
GB1175646(A)
申请公布日期
1969.12.23
申请号
GB19680018413
申请日期
1968.04.18
申请人
DEERE & COMPANY
发明人
分类号
A01B61/04
主分类号
A01B61/04
代理机构
代理人
主权项
地址
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