Railway car brake beam assembly,申请号US19520283326-传众专利搜索

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发明名称	Railway car brake beam assembly
摘要
申请公布号	US2755892(A)	申请公布日期	1956.07.24
申请号	US19520283326	申请日期	1952.04.21
申请人	A. O. SMITH CORPORATION	发明人	SHERMAN DONALD W.
分类号	B61H13/36	主分类号	B61H13/36
代理机构		代理人
主权项
地址

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