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发明名称
TELEPHONE SWITCHING SYSTEM WITH INDEPENDENT SIGNALLING CHANNELS EMPLOYING TIME-DIVISION MULTIPLEX
摘要
申请公布号
US3558827(A)
申请公布日期
1971.01.26
申请号
USD3558827
申请日期
1968.05.08
申请人
PIERRE M. LUCAS;JACQUES M. DONDOUX;JEAN F. DUQUESNE;JEAN-MARIE L. LAPREVOTE
发明人
PIERRE M. LUCAS;JACQUES M. DONDOUX;JEAN F. DUQUESNE;JEAN-MARIE L. LAPREVOTE
分类号
H04Q3/54;(IPC1-7):H04J3/12
主分类号
H04Q3/54
代理机构
代理人
主权项
地址
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