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发明名称
Perfectionnements aux systèmes de télévision et aux procédés d'exploration d'unchamp pour la télévision et autres applications analogues
摘要
申请公布号
FR840851(A)
申请公布日期
1939.05.05
申请号
FRD840851
申请日期
1938.07.19
申请人
发明人
LEMERT RALPH DOVE
分类号
H04N3/08;H04N3/34
主分类号
H04N3/08
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代理人
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