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发明名称
Dispositif pour le contrôle de l'accès à une ligne téléphonique.
摘要
申请公布号
FR2691599(B1)
申请公布日期
2001.08.10
申请号
FR19920006316
申请日期
1992.05.22
申请人
FRANCE TELECOM
发明人
CORNEUX MICHEL
分类号
H04M1/68;H04M1/673;H04M3/38;(IPC1-7):H04M3/22
主分类号
H04M1/68
代理机构
代理人
主权项
地址
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