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发明名称
Light signal for railroads
摘要
申请公布号
US2458401(A)
申请公布日期
1949.01.04
申请号
US19450626348
申请日期
1945.11.02
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
MOORE EDMUND W.
分类号
B61L5/18
主分类号
B61L5/18
代理机构
代理人
主权项
地址
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