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发明名称
Wicket for river dams
摘要
申请公布号
US2701953(A)
申请公布日期
1955.02.15
申请号
US19520305524
申请日期
1952.08.21
申请人
GENERAL STEEL CASTINGS CORPORATION
发明人
TRAVILLA JAMES C.
分类号
E02B7/46
主分类号
E02B7/46
代理机构
代理人
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地址
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