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经营范围
发明名称
Polyfonisk koding
摘要
申请公布号
NO180030(C)
申请公布日期
1997.01.29
申请号
NO19910004947
申请日期
1991.12.13
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
HOLT, CHRISTOPHER ELLIS;MUNDAY, EDWARD;CHEETHAM, BARRY MICHAEL GEORGE
分类号
H04H20/88;H04M3/56;H04S;H04S1/00;(IPC1-7):H04S1/00;H04H5/00
主分类号
H04H20/88
代理机构
代理人
主权项
地址
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