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发明名称
Railway traffic controlling system
摘要
申请公布号
US2096941(A)
申请公布日期
1937.10.26
申请号
US19350026787
申请日期
1935.06.15
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
POWELL WINFRED T.
分类号
B61L5/06
主分类号
B61L5/06
代理机构
代理人
主权项
地址
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