Friction spring for railway cars,申请号US19460703413-传众专利搜索

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发明名称	Friction spring for railway cars
摘要
申请公布号	US2466087(A)	申请公布日期	1949.04.05
申请号	US19460703413	申请日期	1946.10.15
申请人	THE FROST RAILWAY SUPPLY CO.	发明人	ENDSLEY LOUIS E.
分类号	F16F1/04;F16F3/06	主分类号	F16F1/04
代理机构		代理人
主权项
地址

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