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发明名称
Perfectionnements aux montages amplificateurs à lampes pour ondes ultra-courtes
摘要
申请公布号
FR857226(A)
申请公布日期
1940.08.31
申请号
FRD857226
申请日期
1939.07.04
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H03F1/16
主分类号
H03F1/16
代理机构
代理人
主权项
地址
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