Multiple ball check valve,申请号US19630300115-传众专利搜索

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发明名称	Multiple ball check valve
摘要
申请公布号	US3320971(A)	申请公布日期	1967.05.23
申请号	US19630300115	申请日期	1963.08.05
申请人	PHILIP HEMENWAY	发明人	HEMENWAY PHILIP
分类号	F16K15/04	主分类号	F16K15/04
代理机构		代理人
主权项
地址

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