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发明名称
摘要
申请公布号	KR200317825(Y1)	申请公布日期	2003.06.25
申请号	KR20030010856U	申请日期	2003.04.09
申请人		发明人
分类号	E21D11/18	主分类号	E21D11/18
代理机构		代理人
主权项
地址

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