GJENGEFORBINDELSE.,申请号NO19840005286-传众专利搜索

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发明名称	GJENGEFORBINDELSE.
摘要
申请公布号	NO167225(B)	申请公布日期	1991.07.08
申请号	NO19840005286	申请日期	1984.12.28
申请人	HYDRIL CO	发明人	REEVES DOYLE E
分类号	E21B;E21B17/042;F16L;F16L15/06;(IPC1-7):E21B17/042	主分类号	E21B
代理机构		代理人
主权项
地址

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