FLOW CONTROL APPARATUS FOR WELLS,申请号GB19830006088-传众专利搜索

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发明名称	FLOW CONTROL APPARATUS FOR WELLS
摘要
申请公布号	GB2117031(B)	申请公布日期	1985.12.18
申请号	GB19830006088	申请日期	1983.03.04
申请人	* AVA INTERNATIONAL CORPORATION	发明人	GONZALO * VAZQUEZ;NEIL HOOVER * AKKERMAN
分类号	E21B34/10;E21B43/14;(IPC1-7):E21B34/10	主分类号	E21B34/10
代理机构		代理人
主权项
地址

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