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发明名称
Centralized traffic controlling system for railroads
摘要
申请公布号
US2330532(A)
申请公布日期
1943.09.28
申请号
US19410417134
申请日期
1941.10.30
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
WIGHT SEDGWICK N.
分类号
B61L27/00
主分类号
B61L27/00
代理机构
代理人
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