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发明名称
Verfahren zur geräuschlosen Überwachung von Telefongesprächen
摘要
申请公布号
DE19726292(B8)
申请公布日期
2006.05.24
申请号
DE19971026292
申请日期
1997.06.20
申请人
MITEL KNOWLEDGE CORP., KANATA
发明人
ALA, GLENN;DUNCAN, IAN A.
分类号
H04M11/00;H04M3/22;H04M3/50;H04M3/51
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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