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发明名称
PRIVATE BRANCH EXCHANGE
摘要
申请公布号
JPH05347782(A)
申请公布日期
1993.12.27
申请号
JP19920154586
申请日期
1992.06.15
申请人
TOSHIBA CORP
发明人
AOSHIMA AKIHIKO
分类号
H04M3/38;H04M3/42;H04Q3/58;(IPC1-7):H04Q3/58
主分类号
H04M3/38
代理机构
代理人
主权项
地址
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