Rail lubricating device,申请号US19350030793-传众专利搜索

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发明名称	Rail lubricating device
摘要
申请公布号	US2170917(A)	申请公布日期	1939.08.29
申请号	US19350030793	申请日期	1935.07.11
申请人	ARDCO MANUFACTURING CO.	发明人	STERN CHARLES
分类号	B61K3/00	主分类号	B61K3/00
代理机构		代理人
主权项
地址

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