Time controlled valve,申请号US19310562799-传众专利搜索

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发明名称	Time controlled valve
摘要
申请公布号	US2012532(A)	申请公布日期	1935.08.27
申请号	US19310562799	申请日期	1931.09.14
申请人	GRAYSON HEAT CONTROL, LTD.	发明人	GRAYSON JOHN H.;NETSCHERT FRANZ
分类号	F16K31/48	主分类号	F16K31/48
代理机构		代理人
主权项
地址

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