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发明名称
摘要
申请公布号	JP4388864(B2)	申请公布日期	2009.12.24
申请号	JP20040200969	申请日期	2004.07.07
申请人		发明人
分类号	E21B21/00;E04G23/02	主分类号	E21B21/00
代理机构		代理人
主权项
地址

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