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发明名称
摘要
申请公布号	JP3752610(B2)	申请公布日期	2006.03.08
申请号	JP19980140949	申请日期	1998.05.22
申请人		发明人
分类号	E21B11/00;E02D5/48	主分类号	E21B11/00
代理机构		代理人
主权项
地址

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