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发明名称
TRANSMISSION CIRCUIT FOR A DTMF TELEPHONE SET
摘要
申请公布号
EP0122680(B1)
申请公布日期
1987.01.21
申请号
EP19840200516
申请日期
1984.04.12
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
OTTEN, HENRICUS JOHANNES MARIA;VAN DONGEN, FREDERIK;GEBOERS, JOSEPHUS JOHANNES ANTONIUS
分类号
H04L27/26;H04M1/50;(IPC1-7):H04M1/50
主分类号
H04L27/26
代理机构
代理人
主权项
地址
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