Control valve device,申请号US19300455290-传众专利搜索

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发明名称	Control valve device
摘要
申请公布号	US1870856(A)	申请公布日期	1932.08.09
申请号	US19300455290	申请日期	1930.05.24
申请人	THE WESTINGHOUSE AIR BRAKE COMPANY	发明人	LYNN EWING K.
分类号	B60T17/04	主分类号	B60T17/04
代理机构		代理人
主权项
地址

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