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发明名称
COMMUNICATION CONFERENCE TERMINAL EQUIPMENT
摘要
申请公布号
JPH03121689(A)
申请公布日期
1991.05.23
申请号
JP19890258895
申请日期
1989.10.05
申请人
HITACHI LTD
发明人
OTA GICHU
分类号
H04N7/15
主分类号
H04N7/15
代理机构
代理人
主权项
地址
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