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发明名称
Perfectionnements aux amplificateurs à lampes électroniques
摘要
申请公布号
FR806077(A)
申请公布日期
1936.12.07
申请号
FRD806077
申请日期
1936.05.05
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
H03F1/36
主分类号
H03F1/36
代理机构
代理人
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地址
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