A waterproof connecting structure of manhole frame and cover,申请号KR20080135824-传众专利搜索

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发明名称	A waterproof connecting structure of manhole frame and cover
摘要
申请公布号	KR101095952(B1)	申请公布日期	2011.12.20
申请号	KR20080135824	申请日期	2008.12.29
申请人		发明人
分类号	E02D29/12;E02D29/14	主分类号	E02D29/12
代理机构		代理人
主权项
地址

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