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发明名称
Automatic train control system
摘要
申请公布号
US2134952(A)
申请公布日期
1938.11.01
申请号
US19370126423
申请日期
1937.02.18
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
POWELL WINFRED T.
分类号
B61L3/12
主分类号
B61L3/12
代理机构
代理人
主权项
地址
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