Ram-type blowout preventer,申请号SG19950000160-传众专利搜索

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发明名称	Ram-type blowout preventer
摘要
申请公布号	SG30322(A1)	申请公布日期	1996.06.01
申请号	SG19950000160	申请日期	1995.03.25
申请人	COOPER INDUSTRIES, INC.	发明人	OLSON, RICHARD A.
分类号	E21B33/06;(IPC1-7):E21B33/06	主分类号	E21B33/06
代理机构		代理人
主权项
地址

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