VALVE OVERRIDE MECHANISM,申请号GB19870012062-传众专利搜索

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发明名称	VALVE OVERRIDE MECHANISM
摘要
申请公布号	GB8712062(D0)	申请公布日期	1987.06.24
申请号	GB19870012062	申请日期	1987.05.21
申请人	NATIONAL SUPPLY CO (UK) LTD	发明人
分类号	E21B34/04;F16K31/122	主分类号	E21B34/04
代理机构		代理人
主权项
地址

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