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经营范围
发明名称
Circuit pouvant fonctionner comme générateur diphasé d'oscillations sinusoïdalesde fréquence réglable et comme amplificateur sélectif
摘要
申请公布号
FR1015580(A)
申请公布日期
1952.10.15
申请号
FRD1015580
申请日期
1949.01.31
申请人
O. S. A. E.
发明人
分类号
H03B5/22
主分类号
H03B5/22
代理机构
代理人
主权项
地址
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