Drilling method and casing shoe,申请号AU19950035357-传众专利搜索

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发明名称	Drilling method and casing shoe
摘要
申请公布号	AU3535795(A)	申请公布日期	1997.03.05
申请号	AU19950035357	申请日期	1995.08.03
申请人	SVENSKA BORR AB	发明人	OSTEN EDMAN
分类号	E21B7/20;E21B17/08;E21B17/14;(IPC1-7):E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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