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发明名称
BOARD SYSTEM FOR CONFERENCE
摘要
申请公布号
JPH0787245(A)
申请公布日期
1995.03.31
申请号
JP19930227422
申请日期
1993.09.13
申请人
TOSHIBA CORP
发明人
SATO YUTAKA
分类号
H04M3/56;H04N1/00;(IPC1-7):H04N1/00
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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