Hopper-car structure,申请号US19280260996-传众专利搜索

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发明名称	Hopper-car structure
摘要
申请公布号	US1745124(A)	申请公布日期	1930.01.28
申请号	US19280260996	申请日期	1928.03.12
申请人	GENERAL STEEL CASTINGS CORPORATION	发明人	SHEEHAN WILLIAM M.
分类号	B61D7/02	主分类号	B61D7/02
代理机构		代理人
主权项
地址

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