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发明名称
Lautstärkenfernregler für Niederfrequenzverstärker von Tonfilmgeräten.
摘要
申请公布号
AT148298(B)
申请公布日期
1937.01.11
申请号
ATD148298
申请日期
1933.07.28
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
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主分类号
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