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发明名称
UN NUEVO SISTEMA DE DISTRIBUCIoN DE LOS CIRCUITOS CONTENIDOS EN LOS CABLES DE LAS REDES TELEFoNICAS URBANAS PARA MEJORAR EN IMPORTANTE CUANTiA EL APROVECHAMIENTO DEL COBRE Y OTROS MATERIALES DE LAS MISMAS
摘要
申请公布号
ES187226(A3)
申请公布日期
1949.05.16
申请号
ES19260001872
申请日期
1949.02.26
申请人
GONZALEZ CUADRADO, JUAN JOSE
发明人
分类号
(IPC1-7):H04
主分类号
(IPC1-7):H04
代理机构
代理人
主权项
地址
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