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发明名称
Perfectionnements aux amplificateurs à valves thermioniques
摘要
申请公布号
FR740810(A)
申请公布日期
1933.02.01
申请号
FRD740810
申请日期
1932.07.23
申请人
IGRANIC ELECTRIC CO. LIMITED
发明人
PADDLE LESLIE HAROLD
分类号
H03F3/02;H03F3/32
主分类号
H03F3/02
代理机构
代理人
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