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发明名称
Tubes à ondes électromagnétiques progressives à isolant foré d'un canal métallisé
摘要
申请公布号
FR57911(E)
申请公布日期
1953.09.18
申请号
FRD57911
申请日期
1947.12.12
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J23/24
主分类号
H01J23/24
代理机构
代理人
主权项
地址
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