Railroad journal box,申请号US19490133601-传众专利搜索

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发明名称	Railroad journal box
摘要
申请公布号	US2646320(A)	申请公布日期	1953.07.21
申请号	US19490133601	申请日期	1949.12.17
申请人	GENERAL MOTORS CORPORATION	发明人	ALTSON RALPH
分类号	B61F15/12	主分类号	B61F15/12
代理机构		代理人
主权项
地址

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