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发明名称
SUBSCRIBER LINE CONCENTRATION SYSTEM FOR TIME DIVISION TELEPHONE EXCHANGE
摘要
申请公布号
JPH0267097(A)
申请公布日期
1990.03.07
申请号
JP19880219343
申请日期
1988.08.31
申请人
NEC CORP
发明人
YAGI HISAO
分类号
H04Q3/60
主分类号
H04Q3/60
代理机构
代理人
主权项
地址
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