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发明名称
Disk harrow
摘要
申请公布号
US2506807(A)
申请公布日期
1950.05.09
申请号
US19440528797
申请日期
1944.03.30
申请人
JOHN DEERE KILLEFER COMPANY
发明人
MITCHELL ROLLIE H.;MCKAY WILLIAM R.
分类号
A01B23/06
主分类号
A01B23/06
代理机构
代理人
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