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发明名称
Perfectionnements aux dispositifs photo-électriques
摘要
申请公布号
FR861384(A)
申请公布日期
1941.02.07
申请号
FRD861384
申请日期
1939.07.27
申请人
发明人
DUFLOT GABRIEF, FELICIEN, LOUIS
分类号
H01J31/49
主分类号
H01J31/49
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