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发明名称
Vermittlungssystem mit einer Konferenzeinrichtung
摘要
申请公布号
DE59108957(D1)
申请公布日期
1998.04.30
申请号
DE19915008957
申请日期
1991.05.22
申请人
PHILIPS PATENTVERWALTUNG GMBH, 22335 HAMBURG, DE
发明人
HOFMANN, RUDOLF, DIPL.-ING., W-8550 FORCHHEIM, DE
分类号
H04M3/56;H04Q11/04;(IPC1-7):H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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