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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPS6290099(A)
申请公布日期
1987.04.24
申请号
JP19850230238
申请日期
1985.10.15
申请人
NEC CORP
发明人
MORIKAWA KENICHI
分类号
H04Q3/58
主分类号
H04Q3/58
代理机构
代理人
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