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发明名称
EASILY OPEN MENHOLE COVER FOR TIGHT CLOSING
摘要
申请公布号
KR20050082186(A)
申请公布日期
2005.08.23
申请号
KR20040010541
申请日期
2004.02.18
申请人
JUNG, HYUN CHEOL
发明人
JUNG, HYUN CHEOL
分类号
E02D29/14
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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