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经营范围
发明名称
Tube amplificateur et oscillateur pour ultra hautes fréquences
摘要
申请公布号
FR1009016(A)
申请公布日期
1952.05.26
申请号
FRD1009016
申请日期
1950.01.23
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
主权项
地址
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