Improved underground drill rig configuration,申请号AU1997PO07710-传众专利搜索

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发明名称	Improved underground drill rig configuration
摘要
申请公布号	AUPO771097(D0)	申请公布日期	1997.07.31
申请号	AU1997PO07710	申请日期	1997.07.04
申请人	BRANDRILL LTD.	发明人
分类号	E21B7/02	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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