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经营范围
发明名称
MEETING TALKING UNIT
摘要
申请公布号
JPH04332247(A)
申请公布日期
1992.11.19
申请号
JP19910102714
申请日期
1991.05.08
申请人
NEC CORP
发明人
SEKIGUCHI FUMIKO
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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