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发明名称
Perfectionnements aux indicateurs visuels d'accord pour récepteurs radio-électriques
摘要
申请公布号
FR947298(A)
申请公布日期
1949.06.28
申请号
FRD947298
申请日期
1947.05.29
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
发明人
分类号
H01J31/14;H03J3/14
主分类号
H01J31/14
代理机构
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