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发明名称
Automatic train control system for railroads
摘要
申请公布号
US2201116(A)
申请公布日期
1940.05.14
申请号
US19390253363
申请日期
1939.01.28
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
SMITH PERCY W.
分类号
B61L3/22
主分类号
B61L3/22
代理机构
代理人
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地址
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