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发明名称
Système de signalisation à modulation d'impulsions
摘要
申请公布号
FR1048512(A)
申请公布日期
1953.12.22
申请号
FRD1048512
申请日期
1951.09.25
申请人
THE GENERAL ELECTRIC COMPANY LIMITED
发明人
分类号
H04B14/06
主分类号
H04B14/06
代理机构
代理人
主权项
地址
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