Hopper car construction,申请号US19320616187-传众专利搜索

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发明名称	Hopper car construction
摘要
申请公布号	US1949080(A)	申请公布日期	1934.02.27
申请号	US19320616187	申请日期	1932.06.09
申请人	UNION METAL PRODUCTS COMPANY	发明人	MURPHY WALTER P.
分类号	B61D7/18	主分类号	B61D7/18
代理机构		代理人
主权项
地址

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