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发明名称
insulation manhole structure
摘要
申请公布号
KR100807660(B1)
申请公布日期
2008.02.28
申请号
KR20050066205
申请日期
2005.07.21
申请人
发明人
分类号
E02D29/12
主分类号
E02D29/12
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