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发明名称
Perfectionnements aux ensembles projecteurs à rayons cathodiques combinés avec un redresseur à haute tension
摘要
申请公布号
FR836158(A)
申请公布日期
1939.01.12
申请号
FRD836158
申请日期
1938.04.04
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H04N5/74
主分类号
H04N5/74
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代理人
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