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发明名称
Perfectionnements à la télévision
摘要
申请公布号
FR789938(A)
申请公布日期
1935.11.08
申请号
FRD789938
申请日期
1935.05.11
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
分类号
H01J31/30;H01J31/32;H01J31/34
主分类号
H01J31/30
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