Method of making latches for rail switches and blanks for the same,申请号US19320602541-传众专利搜索

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发明名称	Method of making latches for rail switches and blanks for the same
摘要
申请公布号	US1901718(A)	申请公布日期	1933.03.14
申请号	US19320602541	申请日期	1932.04.01
申请人	BARBER BENJAMIN R	发明人	BARBER BENJAMIN R.
分类号	B61L5/10	主分类号	B61L5/10
代理机构		代理人
主权项
地址

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