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经营范围
发明名称
KEY TELEPHONE MASTER SYSTEM
摘要
申请公布号
JPH03278796(A)
申请公布日期
1991.12.10
申请号
JP19900079340
申请日期
1990.03.28
申请人
NEC CORP
发明人
YOSHINO KUMIKO
分类号
H04Q3/58
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
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