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发明名称
MULTI-MEDIA COMMUNICATION CONFERENCE SYSTEM
摘要
申请公布号
JPH06232979(A)
申请公布日期
1994.08.19
申请号
JP19930013315
申请日期
1993.01.29
申请人
RICOH CO LTD
发明人
WATANABE HIDEHIKO
分类号
H04M3/56;(IPC1-7):H04M3/56
主分类号
H04M3/56
代理机构
代理人
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