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发明名称
TELECONFERENCE TERMINAL EQUIPMENT AND TELECONFERENCE MODULE
摘要
申请公布号
CA2073920(A1)
申请公布日期
1993.01.16
申请号
CA19922073920
申请日期
1992.07.15
申请人
HITACHI, LTD.
发明人
SHIBATA, YOJI;TAKIZAWA, MASAAKI;MATSUSHIMA, HITOSHI;ISHIDA, KIYOSHI;YOSHIDA, ATSUO;ISHIBASHI, ATSUSHI;YAMADA, TAKEHIKO
分类号
H04N7/14;H04N7/15;(IPC1-7):H04N7/15
主分类号
H04N7/14
代理机构
代理人
主权项
地址
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