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发明名称
摘要
申请公布号	JP3593632(B2)	申请公布日期	2004.11.24
申请号	JP19990530735	申请日期	1998.11.27
申请人		发明人
分类号	E21B21/06;(IPC1-7):E21B21/06	主分类号	E21B21/06
代理机构		代理人
主权项
地址

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