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经营范围
发明名称
Multiple gauge railway track
摘要
申请公布号
GB2024896(A)
申请公布日期
1980.01.16
申请号
GB19780029179
申请日期
1978.07.07
申请人
DOWSETT H J
发明人
分类号
E01B3/22;E01B9/32;E01B23/02;E01B25/00;(IPC1-7):E01B23/02
主分类号
E01B3/22
代理机构
代理人
主权项
地址
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