Railway rail anchor or anticreeper,申请号US19290358453-传众专利搜索

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发明名称	Railway rail anchor or anticreeper
摘要
申请公布号	US1817455(A)	申请公布日期	1931.08.04
申请号	US19290358453	申请日期	1929.04.27
申请人	MCDONNELL ALOYSIUS S	发明人	MCDONNELL ALOYSIUS S.
分类号	E01B13/02	主分类号	E01B13/02
代理机构		代理人
主权项
地址

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