Anti-siphon device for valves,申请号US19570634870-传众专利搜索

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发明名称	Anti-siphon device for valves
摘要
申请公布号	US2891565(A)	申请公布日期	1959.06.23
申请号	US19570634870	申请日期	1957.01.18
申请人	SCOVILL MANUFACTURING COMPANY	发明人	MACKEY CHARLES W.
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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