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发明名称
Röhrenverstärker.
摘要
申请公布号
AT148542(B)
申请公布日期
1937.01.25
申请号
ATD148542
申请日期
1935.12.31
申请人
VEREINIGTE TELEPHON- TELEGRAPHENFABRIKS-AKTIEN-GESELLSCHAFT CZEIJA, NISSL & CO.
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