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发明名称
RED DE CONCENTRACION PARA CENTRAL TELEFONICA.
摘要
申请公布号
ES464989(A1)
申请公布日期
1978.09.01
申请号
ES19890004649
申请日期
1977.12.13
申请人
JEUMONT-SCHNEIDER
发明人
分类号
H04Q11/04;(IPC1-7):04J/
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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