Railway car roof,申请号US19390286476-传众专利搜索

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发明名称	Railway car roof
摘要
申请公布号	US2241738(A)	申请公布日期	1941.05.13
申请号	US19390286476	申请日期	1939.07.25
申请人	MERRILL RUDEL JOHN	发明人	RUDEL JOHN MERRILL
分类号	B61D17/12	主分类号	B61D17/12
代理机构		代理人
主权项
地址

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