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经营范围
发明名称
KEY TELEPHONE SET
摘要
申请公布号
JPS6295051(A)
申请公布日期
1987.05.01
申请号
JP19850235781
申请日期
1985.10.21
申请人
NEC CORP
发明人
SUGAYA NAOKI
分类号
H04M1/00
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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