Anordning for lukking av en brönn i fri utblåsning,申请号NO19900005223-传众专利搜索

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发明名称	Anordning for lukking av en brönn i fri utblåsning
摘要
申请公布号	NO302085(B1)	申请公布日期	1998.01.19
申请号	NO19900005223	申请日期	1990.12.03
申请人	SOCIETE NATIONALE ELF AQUITAINE, SA;GAZ DE FRANCE	发明人	BUSCH, JEAN-CHARLES;GUERRINI, YANNICK;TAG, JEAN;CARRAU, JOSEPH
分类号	E21B19/00;E21B33/02;(IPC1-7):E21B33/02	主分类号	E21B19/00
代理机构		代理人
主权项
地址

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