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发明名称
(N+1)-LINE SWITCHING CONTROL SYSTEM INCLUDING DROP INSERTION STATION IN DIGITAL RATIO SYSTEM
摘要
申请公布号
JPH02248127(A)
申请公布日期
1990.10.03
申请号
JP19890069065
申请日期
1989.03.20
申请人
FUJITSU LTD
发明人
NAKAJIMA TOSHIO
分类号
H04J3/14
主分类号
H04J3/14
代理机构
代理人
主权项
地址
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