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发明名称
OPTIMUM SUBSCRIBER LINE SELECTION SYSTEM
摘要
申请公布号
JPH0254662(A)
申请公布日期
1990.02.23
申请号
JP19880205818
申请日期
1988.08.18
申请人
NEC CORP
发明人
SUGIMURA TOSHIHIDE
分类号
H04N1/00;H04M11/00;H04N1/32
主分类号
H04N1/00
代理机构
代理人
主权项
地址
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