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发明名称
Improvements in or relating to methods and apparatus for the transmission of electric signals
摘要
申请公布号
GB695417(A)
申请公布日期
1953.08.12
申请号
GB19510013906
申请日期
1951.06.12
申请人
LA RADIO INDUSTRIE
发明人
分类号
H04B14/02
主分类号
H04B14/02
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代理人
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