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发明名称
Remote control system
摘要
申请公布号
US2216820(A)
申请公布日期
1940.10.08
申请号
US19370137500
申请日期
1937.04.17
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
LEWIS LLOYD V.
分类号
B61L27/00;H04L25/00
主分类号
B61L27/00
代理机构
代理人
主权项
地址
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