Rail sander sand trap,申请号US19450604879-传众专利搜索

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发明名称	Rail sander sand trap
摘要
申请公布号	US2431382(A)	申请公布日期	1947.11.25
申请号	US19450604879	申请日期	1945.07.13
申请人	THE NEW YORK AIR BRAKE COMPANY	发明人	ELSWORTH JOHN VAN VARICK
分类号	B61C15/10	主分类号	B61C15/10
代理机构		代理人
主权项
地址

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