HYDRAULIC RELEASE TUBING SEAL DIVIDER,申请号SG19920000672-传众专利搜索

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发明名称	HYDRAULIC RELEASE TUBING SEAL DIVIDER
摘要
申请公布号	SG67292(G)	申请公布日期	1992.09.04
申请号	SG19920000672	申请日期	1992.07.01
申请人	OTIS ENG CO	发明人
分类号	E21B17/06;E21B23/04;(IPC1-7):E21B17/07	主分类号	E21B17/06
代理机构		代理人
主权项
地址

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