WELL CUT-OFF VALVE,申请号SU19925024078-传众专利搜索

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发明名称	WELL CUT-OFF VALVE
摘要
申请公布号	RU2011797(C1)	申请公布日期	1994.04.30
申请号	SU19925024078	申请日期	1992.01.27
申请人	FRANTSEV VLADIMIR F	发明人	FRANTSEV VLADIMIR F
分类号	E21B34/06;(IPC1-7):E21B34/06	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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