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发明名称
CONSTRUCTION METHOD OF DRAINAGE INCLUDING ENSURING HOLE WHICH IS ABLE TO MEASURE CONVENIENTLY AMOUNT OF DEPOSIT
摘要
申请公布号
KR1019970009369(B1)
申请公布日期
1997.06.12
申请号
KR1019940006096
申请日期
1994.03.23
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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