MARINE WELLHEAD STRUCTURE,申请号SG19920000423-传众专利搜索

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发明名称	MARINE WELLHEAD STRUCTURE
摘要
申请公布号	SG42392(G)	申请公布日期	1992.06.12
申请号	SG19920000423	申请日期	1992.04.16
申请人	COOPER IND INC	发明人
分类号	E21B33/035;E21B33/043;(IPC1-7):E21B33/043	主分类号	E21B33/035
代理机构		代理人
主权项
地址

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