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发明名称
Tube à faisceau électronique pour ondes ultra-courtes
摘要
申请公布号
FR951115(A)
申请公布日期
1949.10.17
申请号
FRD951115
申请日期
1947.06.19
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/34;H01J25/78
主分类号
H01J25/34
代理机构
代理人
主权项
地址
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