Control valve device,申请号US19510207337-传众专利搜索

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发明名称	Control valve device
摘要
申请公布号	US2667180(A)	申请公布日期	1954.01.26
申请号	US19510207337	申请日期	1951.01.23
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人	BENT ARTHUR J.
分类号	F04B49/10	主分类号	F04B49/10
代理机构		代理人
主权项
地址

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