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发明名称
Dispositif de transmission pour un canal de service dans une mstallation à canaux multiples à modulation par impulsion
摘要
申请公布号
FR1047732(A)
申请公布日期
1953.12.16
申请号
FRD1047732
申请日期
1951.05.10
申请人
PATELHOLD
发明人
分类号
H04B7/17;H04J3/12
主分类号
H04B7/17
代理机构
代理人
主权项
地址
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