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发明名称
COVER FOR MANHOLE
摘要
申请公布号
KR0111555(Y1)
申请公布日期
1997.12.22
申请号
KR19940009280U
申请日期
1994.04.29
申请人
LEE, CHOL-WOO
发明人
LEE, CHOL-WOO
分类号
E02D29/14;E03F5/04;(IPC1-7):E03F5/04
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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