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发明名称
SUBSCRIBER LINE TEST SYSTEM
摘要
申请公布号
JPH043558(A)
申请公布日期
1992.01.08
申请号
JP19900102858
申请日期
1990.04.20
申请人
OKI ELECTRIC IND CO LTD;NIPPON TELEGR & TELEPH CORP <NTT>;HITACHI LTD
发明人
USHIWATARI ATSUSHI;SAKAZUME WATARU;TAKENAKA MASAAKI;HANAZAKI HITOSHI;NAKAYABU HITOSHI;SHIGEMATSU KENGO
分类号
H04M3/30;(IPC1-7):H04M3/30
主分类号
H04M3/30
代理机构
代理人
主权项
地址
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