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经营范围
发明名称
Telephone interface circuit.
摘要
申请公布号
EP0343089(B1)
申请公布日期
1994.01.12
申请号
EP19890420172
申请日期
1989.05.19
申请人
DOLPHIN INTEGRATION
发明人
DUPILLIER, CHRISTIAN
分类号
H04M1/723;H04M11/00;(IPC1-7):H04M11/00
主分类号
H04M1/723
代理机构
代理人
主权项
地址
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