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发明名称	.
摘要
申请公布号	KR101178043(B1)	申请公布日期	2012.08.29
申请号	KR20090130948	申请日期	2009.12.24
申请人		发明人
分类号	E21D21/00;E02D5/80;E02D17/20;E21D20/02	主分类号	E21D21/00
代理机构		代理人
主权项
地址

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