Railway truck structure,申请号US19330698770-传众专利搜索

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发明名称	Railway truck structure
摘要
申请公布号	US2081998(A)	申请公布日期	1937.06.01
申请号	US19330698770	申请日期	1933.11.20
申请人	GENERAL STEEL CASTINGS CORPORATION	发明人	HALLQUIST EINAR G.;JR. JAMES C. TRAVILLA,
分类号	B61F5/20	主分类号	B61F5/20
代理机构		代理人
主权项
地址

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