Improvements relating to check valves,申请号GB19530024497-传众专利搜索

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发明名称	Improvements relating to check valves
摘要
申请公布号	GB725524(A)	申请公布日期	1955.03.02
申请号	GB19530024497	申请日期	1953.09.04
申请人	HANS KREIDEL;HANS KREIDEL JUNIOR	发明人
分类号	F16K15/06	主分类号	F16K15/06
代理机构		代理人
主权项
地址

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