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发明名称
Cultivating attachment for plows
摘要
申请公布号
US2511067(A)
申请公布日期
1950.06.13
申请号
US19470765085
申请日期
1947.07.31
申请人
H. E. VAUGHAN
发明人
JAMERSON DAVID R.
分类号
A01B17/00
主分类号
A01B17/00
代理机构
代理人
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