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发明名称
Dispositif pour contrôler automatiquement l'amplification des oscillations électriques
摘要
申请公布号
FR748615(A)
申请公布日期
1933.07.06
申请号
FRD748615
申请日期
1933.01.09
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H03G3/22
主分类号
H03G3/22
代理机构
代理人
主权项
地址
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