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发明名称
AUTOMATION AND MANUAL OPEN AND CLOSE WATERGATE
摘要
申请公布号
KR100233748(B1)
申请公布日期
1999.12.01
申请号
KR19970047792
申请日期
1997.09.19
申请人
HAN, SANG-KWAN
发明人
HAN, SANG-KWAN
分类号
E02B7/26;(IPC1-7):E02B7/26
主分类号
E02B7/26
代理机构
代理人
主权项
地址
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