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发明名称
OPERATOR TERMINAL EQUIPMENT
摘要
申请公布号
JPH04322546(A)
申请公布日期
1992.11.12
申请号
JP19910116514
申请日期
1991.04.22
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
TAJI RYUTARO
分类号
H04M11/00
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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