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经营范围
发明名称
Dual opening and shutting structure having a floodgate
摘要
申请公布号
KR100734152(B1)
申请公布日期
2007.07.06
申请号
KR20050023970
申请日期
2005.03.23
申请人
发明人
分类号
E02B7/20;E02B7/40
主分类号
E02B7/20
代理机构
代理人
主权项
地址
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