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经营范围
发明名称
Moisture and soil conserving cultivator
摘要
申请公布号
US1907251(A)
申请公布日期
1933.05.02
申请号
US19320628208
申请日期
1932.08.10
申请人
THE FREE USE OF THE PUBLIC
发明人
DAVIS RAYMOND H.
分类号
A01B13/16
主分类号
A01B13/16
代理机构
代理人
主权项
地址
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