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发明名称
摘要
申请公布号	JP3822947(B2)	申请公布日期	2006.09.20
申请号	JP19970119892	申请日期	1997.05.09
申请人		发明人
分类号	E21B17/01	主分类号	E21B17/01
代理机构		代理人
主权项
地址

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