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发明名称
Improvements in or relating to high frequency transmission systems
摘要
申请公布号
GB363904(A)
申请公布日期
1931.12.31
申请号
GB19310005948
申请日期
1931.02.25
申请人
SOCIETE FRANCAISE RADIO-ELECTRIQUE
发明人
分类号
H03C1/60
主分类号
H03C1/60
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代理人
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