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发明名称
Two-row weeder attachment
摘要
申请公布号
US2707909(A)
申请公布日期
1955.05.10
申请号
US19500194465
申请日期
1950.11.07
申请人
AMPE HENRY J
发明人
AMPE HENRY J.
分类号
A01B39/20
主分类号
A01B39/20
代理机构
代理人
主权项
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