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发明名称
Schnittstelle für Tastenfernsprechendgerät
摘要
申请公布号
DE69130241(T2)
申请公布日期
1999.04.08
申请号
DE19916030241T
申请日期
1991.06.21
申请人
AT & T CORP., NEW YORK, N.Y., US
发明人
KUTZAVITCH, WALTER G., FREEHOLD, NEW JERSEY 07728, US
分类号
H04Q3/58;H04M3/02;H04M3/42;H04M9/00;(IPC1-7):H04M9/00
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
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