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发明名称
Indicator display system
摘要
申请公布号
GB874670(A)
申请公布日期
1961.08.10
申请号
GB19590029781
申请日期
1959.09.01
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
分类号
B61L25/04
主分类号
B61L25/04
代理机构
代理人
主权项
地址
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