Check valve device,申请号US19510238130-传众专利搜索

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法人/股东/高管

发明名称	Check valve device
摘要
申请公布号	US2803265(A)	申请公布日期	1957.08.20
申请号	US19510238130	申请日期	1951.07.23
申请人	ACF INDUSTRIES, INCORPORATED	发明人	COFFEY IRVEN E.
分类号	F04B53/10	主分类号	F04B53/10
代理机构		代理人
主权项
地址

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