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发明名称
Improvements in apparatus for transmitting and receiving radio oscillations
摘要
申请公布号
GB683942(A)
申请公布日期
1952.12.10
申请号
GB19470023286
申请日期
1947.08.22
申请人
SOCIETE FRANCAISE DES TELECOMMUNICATIONS
发明人
分类号
H04B1/54
主分类号
H04B1/54
代理机构
代理人
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