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经营范围
发明名称
Circuit alternant amplificateur d'intensité
摘要
申请公布号
FR970995(A)
申请公布日期
1951.01.11
申请号
FRD970995
申请日期
1948.09.01
申请人
发明人
FILLIOL LOUIS-ALAIN-DANIEL
分类号
H03F99/00
主分类号
H03F99/00
代理机构
代理人
主权项
地址
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