METHOD AND APPARATUS FOR PRODUCING OIL FROM UNDERWATER WELLS,申请号CAD911881-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR PRODUCING OIL FROM UNDERWATER WELLS
摘要
申请公布号	CA911881(A)	申请公布日期	1972.10.10
申请号	CAD911881	申请日期
申请人	OCEAN SYSTEMS	发明人	JOHN P. THOMAS
分类号	E21B7/12;E21B43/01;E21B43/017;(IPC1-7):E21B43/01	主分类号	E21B7/12
代理机构		代理人
主权项
地址

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