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发明名称
MULTIPARTY LINE ADAPTOR WITH PRIVACY FEATURE
摘要
申请公布号
EP0129843(B1)
申请公布日期
1990.11.28
申请号
EP19840107086
申请日期
1984.06.20
申请人
ALCATEL N.V.
发明人
MIDDLETON, FRANCISCO ARTURO;DAS, SANTANU;HARGRAVE, FRANKLIN
分类号
H04Q5/02;H04M1/70
主分类号
H04Q5/02
代理机构
代理人
主权项
地址
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