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发明名称
DISK HARROW
摘要
申请公布号
CA832232(A)
申请公布日期
1970.01.20
申请号
CAD832232
申请日期
申请人
DEERE AND COMPANY
发明人
CHARLES H. YOUNGBERG;HAROLD V. HANSEN
分类号
主分类号
代理机构
代理人
主权项
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