EXTRACTING A PORTION OF MATERIAL FROM A BOREHOLE USING A SAMPLER WITH PIVOTING GATE VALVE,申请号AU19870077429-传众专利搜索

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发明名称	EXTRACTING A PORTION OF MATERIAL FROM A BOREHOLE USING A SAMPLER WITH PIVOTING GATE VALVE
摘要
申请公布号	AU7742987(A)	申请公布日期	1989.03.02
申请号	AU19870077429	申请日期	1987.08.25
申请人	B.A. QUAM	发明人	BRADLEY A. QUAM
分类号	E21B34/06;E21B49/00;(IPC1-7):E21B49/00	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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