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发明名称
LINE SWITCHING CIRCUIT
摘要
申请公布号
JPH03243031(A)
申请公布日期
1991.10.30
申请号
JP19900040472
申请日期
1990.02.21
申请人
NEC ENG LTD
发明人
NAKAJIMA MASAHIRO
分类号
H04L1/22;H04B1/74
主分类号
H04L1/22
代理机构
代理人
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地址
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