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发明名称
Systèmes de signalisation secrets à voies multiples
摘要
申请公布号
FR980679(A)
申请公布日期
1951.05.16
申请号
FRD980679
申请日期
1949.02.21
申请人
THE GENERAL ELECTRIC COMPANY LIMITED
发明人
分类号
H04J3/04
主分类号
H04J3/04
代理机构
代理人
主权项
地址
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Access control system, access control method, relay station apparatus, terminal station apparatus, transmitter side processing method, receiver side processing system, and receiver side processing method
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