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发明名称
MEJORAS INTRODUCIDAS EN LOS CABLES TELEFoNICOS PLANOS
摘要
申请公布号
ES199470(A1)
申请公布日期
1952.01.16
申请号
ES19700001994
申请日期
1951.09.05
申请人
PHILIPS'GLOEILAMPENFABRIEKEN, N. V.
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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