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发明名称
Echo waveform correctors
摘要
申请公布号
US2935703(A)
申请公布日期
1960.05.03
申请号
US19570647674
申请日期
1957.03.21
申请人
HER MAJESTY'S POSTMASTER GENERAL OF THE GENERAL POST OFFICE
发明人
LINKE JOSEF MARIA
分类号
H03H2/00;H04B3/14;H04B3/40
主分类号
H03H2/00
代理机构
代理人
主权项
地址
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