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经营范围
发明名称
Rotary plow
摘要
申请公布号
US2669919(A)
申请公布日期
1954.02.23
申请号
US19510243425
申请日期
1951.08.24
申请人
FREEMAN LEON T
发明人
FREEMAN LEON T.
分类号
A01B33/02
主分类号
A01B33/02
代理机构
代理人
主权项
地址
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