ARRANGEMENT FOR GUIDING DRILL RODS IN AN EXTENSION ROD DRILLING DEVICE,申请号AU19870071143-传众专利搜索

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发明名称	ARRANGEMENT FOR GUIDING DRILL RODS IN AN EXTENSION ROD DRILLING DEVICE
摘要
申请公布号	AU7114387(A)	申请公布日期	1987.10.22
申请号	AU19870071143	申请日期	1987.04.07
申请人	OY TAMPELLA AB	发明人	NOT GIVEN
分类号	E21B19/24	主分类号	E21B19/24
代理机构		代理人
主权项
地址

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