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发明名称
Apparatus for dredging
摘要
申请公布号
US2120444(A)
申请公布日期
1938.06.14
申请号
US19360065276
申请日期
1936.02.24
申请人
SMITH CHARLES T
发明人
SMITH CHARLES T.
分类号
E02F5/00
主分类号
E02F5/00
代理机构
代理人
主权项
地址
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