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发明名称
CONFERENCE CIRCUIT FOR A DIGITAL COMMUNICATION SYSTEM
摘要
申请公布号
EP0270189(A3)
申请公布日期
1989.07.05
申请号
EP19870202377
申请日期
1987.12.01
申请人
PHILIPS PATENTVERWALTUNG GMBH;N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
WEICK, GUNTER, DIPL.-ING.;WINDOLF, LOTHAR, DIPL.-ING.
分类号
H04M9/00;H04M3/56;(IPC1-7):H04M3/56;H04Q11/04
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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