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发明名称
TRUNK LINE CALL RESTRICTION SYSTEM IN PRIVATE BRANCH OF EXCHANGE
摘要
申请公布号
JPH01284057(A)
申请公布日期
1989.11.15
申请号
JP19880113049
申请日期
1988.05.10
申请人
TOSHIBA CORP
发明人
YABU KOICHIRO
分类号
H04M3/42;H04M3/38;H04Q3/58
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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