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发明名称
SISTEMA DE TRANSMISIoN BILATERAL DE ONDAS PORTADORAS POR CANAL MuLTIPLE
摘要
申请公布号
ES198906(A1)
申请公布日期
1953.09.01
申请号
ES19060001989
申请日期
1951.07.17
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
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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