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发明名称	FAST FEED DRILL HEAD
摘要
申请公布号	SE8603044(D0)	申请公布日期	1986.07.08
申请号	SE19860003044	申请日期	1986.07.08
申请人	LONGYEAR COMPANY	发明人	D R * HALVORSEN;I N * PAECH
分类号	E21B19/08;B23B47/18;E21B3/02;E21B19/07;E21B19/086	主分类号	E21B19/08
代理机构		代理人
主权项
地址

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