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发明名称
LINE SWITCHING CIRCUIT
摘要
申请公布号
JPH01302933(A)
申请公布日期
1989.12.06
申请号
JP19880131662
申请日期
1988.05.31
申请人
NEC CORP
发明人
SASAKI KATSUHIRO;OKABAYASHI TETSUYA
分类号
H04L1/22;H04B1/74
主分类号
H04L1/22
代理机构
代理人
主权项
地址
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