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发明名称
Schaltung mit Schirmgitterröhre.
摘要
申请公布号
AT144980(B)
申请公布日期
1936.03.25
申请号
ATD144980
申请日期
1933.06.14
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
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