Angle bar for rail joints,申请号US19300461903-传众专利搜索

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发明名称	Angle bar for rail joints
摘要
申请公布号	US1854921(A)	申请公布日期	1932.04.19
申请号	US19300461903	申请日期	1930.06.18
申请人	BOYCE WILLIAM S	发明人	BOYCE WILLIAM 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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