Cuvelage de puits et mode d'assemblage et de blocage de ses éléments constitutifs.,申请号OA19660052519-传众专利搜索

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发明名称	Cuvelage de puits et mode d'assemblage et de blocage de ses éléments constitutifs.
摘要
申请公布号	OA2652(A)	申请公布日期	1970.12.15
申请号	OA19660052519	申请日期	1966.07.07
申请人	VALLOUREC S.A.	发明人	THEOPHILE MOREAU
分类号	E21D5/10;(IPC1-7):E21D5/10	主分类号	E21D5/10
代理机构		代理人
主权项
地址

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