WELL BORE VALVE APPARATUS,申请号GB19860002076-传众专利搜索

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发明名称	WELL BORE VALVE APPARATUS
摘要
申请公布号	GB8602076(D0)	申请公布日期	1986.03.05
申请号	GB19860002076	申请日期	1986.01.28
申请人	SCHLUMBERGER TECHNOLOGY CORP	发明人
分类号	E21B34/00;E21B34/10;E21B49/00;E21B49/08	主分类号	E21B34/00
代理机构		代理人
主权项
地址

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