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发明名称
Anordnung zum wahlweisen Abhören von Programmen in Rundfunkanlagen.
摘要
申请公布号
AT174088(B)
申请公布日期
1953.02.25
申请号
ATD174088
申请日期
1951.04.25
申请人
SIEMENS & HALSKE GESELLSCHAFT M. B. H.
发明人
ING. JOHANN FRIEDMANN
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