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发明名称
CALL CONTROL SUPPRESSION SYSTEM IN AUTOMATIC EXCHANGE
摘要
申请公布号
JPH02234553(A)
申请公布日期
1990.09.17
申请号
JP19890054487
申请日期
1989.03.07
申请人
NEC CORP
发明人
OGURA TOSHIYUKI
分类号
H04M3/42;H04M3/00;H04M3/533
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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