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经营范围
发明名称
CALL CONNECTION CONTROL SYSTEM
摘要
申请公布号
JPH06209374(A)
申请公布日期
1994.07.26
申请号
JP19930003161
申请日期
1993.01.12
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
UCHIDA TSUTOMU;IZUMI NATSUKI;KAMISAKA KYUICHI
分类号
H04M3/42;H04Q3/545;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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