A DRILLING SYSTEM AND METHOD,申请号GB19910018618-传众专利搜索

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发明名称	A DRILLING SYSTEM AND METHOD
摘要
申请公布号	GB9118618(D0)	申请公布日期	1991.10.16
申请号	GB19910018618	申请日期	1991.08.30
申请人	CAMCO DRILLING GROUP LTD.	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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