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经营范围
发明名称
RAILWAY TRAFFIC CONTROLLING APPARATUS
摘要
申请公布号
CA426418(A)
申请公布日期
1945.03.27
申请号
CAD426418
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
JOHN M. PELIKAN
分类号
主分类号
代理机构
代理人
主权项
地址
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