WELL SYSTEM AND METHOD,申请号GB19810024552-传众专利搜索

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发明名称	WELL SYSTEM AND METHOD
摘要
申请公布号	GB2088927(A)	申请公布日期	1982.06.16
申请号	GB19810024552	申请日期	1981.08.11
申请人	OTIS ENGINEERING CORP	发明人
分类号	E21B23/08;E21B34/06;E21B34/12;E21B34/14;E21B43/14;(IPC1-7):E21B34/10	主分类号	E21B23/08
代理机构		代理人
主权项
地址

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