3 point tight safe manholl open tool,申请号KR20070004422U-传众专利搜索

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发明名称	3 point tight safe manholl open tool
摘要
申请公布号	KR20080004038(U)	申请公布日期	2008.09.22
申请号	KR20070004422U	申请日期	2007.03.17
申请人		发明人
分类号	E02D29/12	主分类号	E02D29/12
代理机构		代理人
主权项
地址

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