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发明名称
Schaltkreis in einer Fernsprecheinrichtung zum Wählen zwischen Zweileitungs- und Tastensystem-Betriebsart
摘要
申请公布号
DE69133250(D1)
申请公布日期
2003.06.12
申请号
DE19916033250
申请日期
1991.12.31
申请人
THOMSON CONSUMER ELECTRONICS, INC.
发明人
KUOK, HENRY HON-IAO;LIVINGSTON, JOHN HERBERT
分类号
H04M1/64;H04M1/654;(IPC1-7):H04M1/64
主分类号
H04M1/64
代理机构
代理人
主权项
地址
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