JOINTS,PARTICULARLY FOR INTERCONNECTING PIPE SECTIONS EMPLOYED IN OIL WELL OPERATIONS,申请号USD3508771-传众专利搜索

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发明名称	JOINTS,PARTICULARLY FOR INTERCONNECTING PIPE SECTIONS EMPLOYED IN OIL WELL OPERATIONS
摘要
申请公布号	US3508771(A)	申请公布日期	1970.04.28
申请号	USD3508771	申请日期	1967.07.17
申请人	DITE: VALLOUREC:SA.	发明人	JEAN LOUIS ALBERT DURET
分类号	E21B17/042;F16L15/04;F16L15/06;(IPC1-7):F16L25/00	主分类号	E21B17/042
代理机构		代理人
主权项
地址

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