,申请号JP19970262344-传众专利搜索

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发明名称
摘要
申请公布号	JP3791644(B2)	申请公布日期	2006.06.28
申请号	JP19970262344	申请日期	1997.09.26
申请人		发明人
分类号	E21B7/04;E21D20/00;E02D5/80;E21B7/02;E21B15/00;E21B19/08;E21B19/20	主分类号	E21B7/04
代理机构		代理人
主权项
地址

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