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发明名称
SUBSCRIBER CALLING SYSTEM
摘要
申请公布号
JPH05219224(A)
申请公布日期
1993.08.27
申请号
JP19920019642
申请日期
1992.02.05
申请人
NEC CORP
发明人
KURAHASHI MAKOTO
分类号
H04M3/42;H04Q3/58
主分类号
H04M3/42
代理机构
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