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发明名称
CONFERENCE TALKING SYSTEM
摘要
申请公布号
JPH0332266(A)
申请公布日期
1991.02.12
申请号
JP19890168997
申请日期
1989.06.29
申请人
NEC COMMUN SYST LTD
发明人
YOKOTA ISAO
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
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地址
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