locking apparatus for manhole,申请号KR20080028798-传众专利搜索

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发明名称	locking apparatus for manhole
摘要
申请公布号	KR100992958(B1)	申请公布日期	2010.11.08
申请号	KR20080028798	申请日期	2008.03.28
申请人		发明人
分类号	E02D29/14;E02D29/12	主分类号	E02D29/14
代理机构		代理人
主权项
地址

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