An improved suction relief valve,申请号GB19390001096-传众专利搜索

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发明名称	An improved suction relief valve
摘要
申请公布号	GB522869(A)	申请公布日期	1940.06.28
申请号	GB19390001096	申请日期	1939.01.12
申请人	JAMES PONTUS JOHNSON	发明人
分类号	F16K24/06	主分类号	F16K24/06
代理机构		代理人
主权项
地址

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