Door closing means for load discharging cars,申请号US19490080474-传众专利搜索

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发明名称	Door closing means for load discharging cars
摘要
申请公布号	US2640437(A)	申请公布日期	1953.06.02
申请号	US19490080474	申请日期	1949.03.09
申请人	ENTERPRISE RAILWAY EQUIPMENT COMPANY	发明人	DOREY GEORGE B.
分类号	B61D7/26	主分类号	B61D7/26
代理机构		代理人
主权项
地址

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