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发明名称
Train dispatching system for railroads
摘要
申请公布号
US2073051(A)
申请公布日期
1937.03.09
申请号
US19290383227
申请日期
1929.08.03
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
DICKE OSCAR H.
分类号
B61L7/08
主分类号
B61L7/08
代理机构
代理人
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地址
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