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发明名称
Draft operated angling mechanism for disk harrows
摘要
申请公布号
US2450574(A)
申请公布日期
1948.10.05
申请号
US19450585857
申请日期
1945.03.31
申请人
BIBB JOHN T
发明人
BIBB JOHN T.
分类号
A01B23/04
主分类号
A01B23/04
代理机构
代理人
主权项
地址
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