Liquid-feed-control device,申请号US19230632176-传众专利搜索

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发明名称	Liquid-feed-control device
摘要
申请公布号	US1770591(A)	申请公布日期	1930.07.15
申请号	US19230632176	申请日期	1923.04.14
申请人	RAILWAY IMPROVEMENT COMPANY	发明人	FERGUSON GEORGE F.
分类号	F16N7/12	主分类号	F16N7/12
代理机构		代理人
主权项
地址

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