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发明名称
摘要
申请公布号
KR100971613(B1)
申请公布日期
2010.07.20
申请号
KR20100020474
申请日期
2010.03.08
申请人
发明人
分类号
E01D19/16;E01D2/00;E01D22/00;E04G21/12
主分类号
E01D19/16
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代理人
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