Four-way valve device,申请号US19620213275-传众专利搜索

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发明名称	Four-way valve device
摘要
申请公布号	US3165119(A)	申请公布日期	1965.01.12
申请号	US19620213275	申请日期	1962.07.30
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人	HEWITT ELLIS E.
分类号	F16K7/02	主分类号	F16K7/02
代理机构		代理人
主权项
地址

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