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发明名称
IMPROVEMENTS IN OR RELATING TO TRAM TRACKS
摘要
申请公布号
GB9100069(D0)
申请公布日期
1991.02.20
申请号
GB19910000069
申请日期
1991.01.03
申请人
BRITISH STEEL PLC
发明人
分类号
B21B1/08;E01B5/04;E01B21/02
主分类号
B21B1/08
代理机构
代理人
主权项
地址
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