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发明名称
摘要
申请公布号	JP4106675(B2)	申请公布日期	2008.06.25
申请号	JP19990290523	申请日期	1999.10.13
申请人		发明人
分类号	E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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