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经营范围
发明名称
Railway train communication system
摘要
申请公布号
US2460354(A)
申请公布日期
1949.02.01
申请号
US19440567844
申请日期
1944.12.12
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
KONRAD WILLIAM L.;BOSSART PAUL N.;LEBERKNIGHT CHARLES E.
分类号
B61L15/00
主分类号
B61L15/00
代理机构
代理人
主权项
地址
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