UNDERWATER WELLHEAD WITH RE-ENTRY LUBRICATOR,申请号CAD810966-传众专利搜索

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发明名称	UNDERWATER WELLHEAD WITH RE-ENTRY LUBRICATOR
摘要
申请公布号	CA810966(A)	申请公布日期	1969.04.22
申请号	CAD810966	申请日期
申请人	SHELL OIL COMPANY	发明人	BRUCE J. WATKINS;GLENN D. JOHNSON
分类号		主分类号
代理机构		代理人
主权项
地址

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