CASING ASSEMBLY FOR A DOWN-THE-HOLE DRILL TOOL,申请号IE19910004152-传众专利搜索

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发明名称	CASING ASSEMBLY FOR A DOWN-THE-HOLE DRILL TOOL
摘要
申请公布号	IE914152(A1)	申请公布日期	1992.06.03
申请号	IE19910004152	申请日期	1991.11.29
申请人	SANDVIK AB.	发明人
分类号	E21B4/06;E21B4/14;E21B17/10;(IPC1-7):E21B1/00;E21B17/00	主分类号	E21B4/06
代理机构		代理人
主权项
地址

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