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发明名称
Elektronenröhre.
摘要
申请公布号
CH168268(A)
申请公布日期
1934.03.31
申请号
CHD168268
申请日期
1933.07.17
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
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