PROCESSO DE PERFURACAO POR FUSAO,申请号BR19888804952-传众专利搜索

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发明名称	PROCESSO DE PERFURACAO POR FUSAO
摘要
申请公布号	BR8804952(A)	申请公布日期	1989.10.17
申请号	BR19888804952	申请日期	1988.01.12
申请人	WERNER FOPPE	发明人	WERNER FOPPE
分类号	E21B;E21B7/14;E21B7/15;E21B10/02;E21B25/10;(IPC1-7):E21B7/14	主分类号	E21B
代理机构		代理人
主权项
地址

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