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发明名称
CODED RAILWAY SIGNALLING APPARATUS
摘要
申请公布号
CA425365(A)
申请公布日期
1945.01.30
申请号
CAD425365
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
ARTHUR L. JEROME
分类号
主分类号
代理机构
代理人
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