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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPS6387898(A)
申请公布日期
1988.04.19
申请号
JP19860233636
申请日期
1986.09.30
申请人
NEC CORP
发明人
HOSOKUBO TAKAO
分类号
H04M3/38;H04M3/42;H04Q3/58
主分类号
H04M3/38
代理机构
代理人
主权项
地址
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