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发明名称
Perfectionnements aux générateurs d'ondes ultra-courtes comportant une lampe à champ de freinage
摘要
申请公布号
FR877189(A)
申请公布日期
1942.11.30
申请号
FRD877189
申请日期
1941.07.23
申请人
COMPAGNIE GENERAL DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/68
主分类号
H01J25/68
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代理人
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