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发明名称
Telecommunications network
摘要
申请公布号
GB9803274(D0)
申请公布日期
1998.04.08
申请号
GB19980003274
申请日期
1998.02.16
申请人
SONY UNITED KINGDOM LIMITED
发明人
分类号
H04H20/63;H04M7/00;H04N7/10;H04N7/14
主分类号
H04H20/63
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代理人
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