A prefabricated railway track structure for use in mines,申请号GB19420012248-传众专利搜索

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发明名称	A prefabricated railway track structure for use in mines
摘要
申请公布号	GB563933(A)	申请公布日期	1944.09.06
申请号	GB19420012248	申请日期	1942.08.31
申请人	GARFIELD BRADEN;NELSON ABBIE MICHAELSON	发明人
分类号	E01B23/06	主分类号	E01B23/06
代理机构		代理人
主权项
地址

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