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发明名称
Dispositif électronique à haute impédance de recopie des tensions et modulations d'une ligne téléphonique placée sous surveillance.
摘要
申请公布号
FR2699774(B1)
申请公布日期
1995.02.17
申请号
FR19920015877
申请日期
1992.12.23
申请人
APITEL ROBOTEL
发明人
ROBERT DESPRES
分类号
H04M1/24;H04M3/30;(IPC1-7):H04M3/24
主分类号
H04M1/24
代理机构
代理人
主权项
地址
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