APPARATUS FOR PREVENTING FALLING INTO MANHOLE,申请号KR20120009786U-传众专利搜索

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发明名称	APPARATUS FOR PREVENTING FALLING INTO MANHOLE
摘要
申请公布号	KR20140002669(U)	申请公布日期	2014.05.09
申请号	KR20120009786U	申请日期	2012.10.29
申请人		发明人
分类号	E02D29/12;E04G21/32	主分类号	E02D29/12
代理机构		代理人
主权项
地址

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