Railroad the and rail clamp,申请号US19290416916-传众专利搜索

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发明名称	Railroad the and rail clamp
摘要
申请公布号	US1789545(A)	申请公布日期	1931.01.20
申请号	US19290416916	申请日期	1929.12.27
申请人	GAGE OSCAR S	发明人	GAGE OSCAR S.
分类号	E01B9/32	主分类号	E01B9/32
代理机构		代理人
主权项
地址

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