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发明名称
CENTRALIZED TRAFFIC CONTROL SYSTEM OF THE CODED REVERSIBLE TRACK CIRCUIT TYPE
摘要
申请公布号
CA507038(A)
申请公布日期
1954.11.02
申请号
CAD507038
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
IRA F. CADMAN;CHARLES W. FAILOR
分类号
主分类号
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