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发明名称
CONTINUITY TEST SYSTEM FOR H SERIES TRUNK CIRCUIT
摘要
申请公布号
JPH01279663(A)
申请公布日期
1989.11.09
申请号
JP19880109171
申请日期
1988.05.06
申请人
NEC CORP;NIPPON TELEGR & TELEPH CORP <NTT>
发明人
KAMEYAMA HIDEO;TAKESHITA TAKAYUKI
分类号
H04M3/30
主分类号
H04M3/30
代理机构
代理人
主权项
地址
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