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发明名称
Perfectionnements aux dispositifs amplificateurs à gain variable
摘要
申请公布号
FR1133682(A)
申请公布日期
1957.04.01
申请号
FRD1133682
申请日期
1955.10.14
申请人
COMPAGNIE GENERALE DE CONSTRUCTIONS TELEPHONIQUES
发明人
MINGAUD ANDRE
分类号
H03G7/02
主分类号
H03G7/02
代理机构
代理人
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地址
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