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发明名称
Canal trimmer
摘要
申请公布号
US3377726(A)
申请公布日期
1968.04.16
申请号
US19650457988
申请日期
1965.05.24
申请人
R. A. HANSON COMPANY
发明人
HANSON RAYMOND A.
分类号
E02B3/12
主分类号
E02B3/12
代理机构
代理人
主权项
地址
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