Roller device for displacement of railroad switching rails,申请号GB19990016309-传众专利搜索

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发明名称	Roller device for displacement of railroad switching rails
摘要
申请公布号	GB9916309(D0)	申请公布日期	1999.09.15
申请号	GB19990016309	申请日期	1999.07.12
申请人	COMPANHIA VALE DO RIO DOCE	发明人
分类号	E01B7/02	主分类号	E01B7/02
代理机构		代理人
主权项
地址

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