Front rod for railway switches,申请号US19440542666-传众专利搜索

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发明名称	Front rod for railway switches
摘要
申请公布号	US2377818(A)	申请公布日期	1945.06.05
申请号	US19440542666	申请日期	1944.06.29
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	SMITH HARRY R.
分类号	B61L5/02	主分类号	B61L5/02
代理机构		代理人
主权项
地址

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