Backflow preventer with vacuum breaker,申请号US19580720241-传众专利搜索

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发明名称	Backflow preventer with vacuum breaker
摘要
申请公布号	US3023766(A)	申请公布日期	1962.03.06
申请号	US19580720241	申请日期	1958.03.10
申请人	CYRIL BISSELL JACOB	发明人	BISSELL JACOB CYRIL
分类号	E03C1/10	主分类号	E03C1/10
代理机构		代理人
主权项
地址

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