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发明名称
Switching system
摘要
申请公布号
GB2184325(A)
申请公布日期
1987.06.17
申请号
GB19860026187
申请日期
1986.11.03
申请人
* MIDLANDS VIDEO SYSTEMS LIMITED
发明人
RUSSELL * SINGLETON
分类号
H04H20/10;H04H60/04;H04N5/268;H04Q3/52;(IPC1-7):H04Q3/52;H04H1/02
主分类号
H04H20/10
代理机构
代理人
主权项
地址
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