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经营范围
发明名称
TRAFFIC CONTROLLING APPARATUS
摘要
申请公布号
CA488614(A)
申请公布日期
1952.12.02
申请号
CAD488614
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
GEORGE W. BAUGHMAN
分类号
主分类号
代理机构
代理人
主权项
地址
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