ENLARGEMENT METHOD OF CRACK IN GEOTHERM GENERATING SHAFT WELL,申请号JP19900174683-传众专利搜索

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发明名称	ENLARGEMENT METHOD OF CRACK IN GEOTHERM GENERATING SHAFT WELL
摘要
申请公布号	JPH0462290(A)	申请公布日期	1992.02.27
申请号	JP19900174683	申请日期	1990.07.02
申请人	MITSUBISHI MATERIALS CORP	发明人	KUBOTA YASUHIRO;KITAO KOJI
分类号	E21B43/00;E21B43/26	主分类号	E21B43/00
代理机构		代理人
主权项
地址

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