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经营范围
发明名称
Perfectionnements aux systèmes amplificateurs
摘要
申请公布号
FR791120(A)
申请公布日期
1935.12.04
申请号
FRD791120
申请日期
1934.09.04
申请人
发明人
BUISSON PIERRE, RAOUL, GASTON
分类号
H03F3/28;H03F3/32
主分类号
H03F3/28
代理机构
代理人
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地址
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