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发明名称	BOHRVORRICHTUNG
摘要
申请公布号	AT390303(B)	申请公布日期	1990.04.25
申请号	AT19860000541	申请日期	1986.03.03
申请人	ING. GUENTER KLEMM SPEZIALUNTERNEHMEN FUER BOHRTECHNIK	发明人
分类号	E21B7/20;E21B10/38;E21B10/40;E21B10/56;E21B10/62;E21B21/00	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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