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发明名称
Amplificateur électronique avec grilles et écrans recouverts d'un isolant
摘要
申请公布号
FR953227(A)
申请公布日期
1949.12.02
申请号
FRD953227
申请日期
1947.09.19
申请人
发明人
BOTET ALBERT-EMMANUEL-JOSE
分类号
H01J19/38
主分类号
H01J19/38
代理机构
代理人
主权项
地址
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