System of aligning railroad track,申请号US19580784153-传众专利搜索

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发明名称	System of aligning railroad track
摘要
申请公布号	US3000099(A)	申请公布日期	1961.09.19
申请号	US19580784153	申请日期	1958.12.31
申请人	HAYES BRICE E	发明人	HAYES BRICE E.
分类号	E01B35/00	主分类号	E01B35/00
代理机构		代理人
主权项
地址

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