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发明名称
Perfectionnements aux amplificateurs à réaction
摘要
申请公布号
FR1005920(A)
申请公布日期
1952.04.17
申请号
FRD1005920
申请日期
1947.10.16
申请人
发明人
PRESENTEY SHELLEY
分类号
H03G5/08
主分类号
H03G5/08
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代理人
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