Underwater wellhead connection,申请号US19650491573-传众专利搜索

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发明名称	Underwater wellhead connection
摘要
申请公布号	US3378066(A)	申请公布日期	1968.04.16
申请号	US19650491573	申请日期	1965.09.30
申请人	SHELL OIL COMPANY	发明人	OTTEMAN LLOYD G.;ROHLOFF LARRY G.
分类号	E21B43/013	主分类号	E21B43/013
代理机构		代理人
主权项
地址

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