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发明名称
LINE ACQUISITION SYSTEM FOR EXCHANGE
摘要
申请公布号
JPH0191596(A)
申请公布日期
1989.04.11
申请号
JP19870247965
申请日期
1987.10.02
申请人
NEC CORP
发明人
NIWA HIROKI
分类号
H04Q3/54;H04M3/00
主分类号
H04Q3/54
代理机构
代理人
主权项
地址
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