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发明名称
KORREKTUR EINER AKUSTISCHEN RÜCKKOPPLUNG
摘要
申请公布号
DE69713805(T2)
申请公布日期
2003.08.07
申请号
DE19976013805T
申请日期
1997.04.02
申请人
BRITISH TELECOMMUNICATIONS P.L.C., LONDON
发明人
LEWIS, VAUGHAN;ENSOR, EDWARD
分类号
H03H21/00;H04B3/23;H04M1/60;H04M9/08;H04R3/02;(IPC1-7):H04R3/02
主分类号
H03H21/00
代理机构
代理人
主权项
地址
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