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经营范围
发明名称
Elektronenstromverstärker für Spannungsankopplung.
摘要
申请公布号
AT158478(B)
申请公布日期
1940.04.10
申请号
ATD158478
申请日期
1938.02.17
申请人
RADIOAKTIENGESELLSCHAFT D. S. LOEWE
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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