Delay opening valve,申请号US19590862242-传众专利搜索

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发明名称	Delay opening valve
摘要
申请公布号	US2971464(A)	申请公布日期	1961.02.14
申请号	US19590862242	申请日期	1959.12.28
申请人	STEVENS CURTIS T	发明人	STEVENS CURTIS T.
分类号	E03B5/02;E03B11/00;F16K24/06	主分类号	E03B5/02
代理机构		代理人
主权项
地址

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