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发明名称
LINE CHANGEOVER SYSTEM
摘要
申请公布号
JPH07288584(A)
申请公布日期
1995.10.31
申请号
JP19940076927
申请日期
1994.04.15
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
UEDA YUZABURO;TERAKAWA KATSUICHI;YONEDA HIROYUKI;TANIGUCHI YOSHIFUMI
分类号
H04M3/22;H04M3/00;(IPC1-7):H04M3/00
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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