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发明名称
Implement lift and depth gauge mechanism for tractor cultivators
摘要
申请公布号
US2551333(A)
申请公布日期
1951.05.01
申请号
US19480049782
申请日期
1948.09.17
申请人
O'BRIEN CHARLES F
发明人
O'BRIEN CHARLES F.
分类号
A01B63/04;A01B63/16
主分类号
A01B63/04
代理机构
代理人
主权项
地址
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