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经营范围
发明名称
Perfectionnement aux tubes à rayons cathodiques
摘要
申请公布号
FR1049041(A)
申请公布日期
1953.12.28
申请号
FRD1049041
申请日期
1952.01.11
申请人
LA RADIOTECHNIQUE
发明人
DROCHE ELIE
分类号
H01J29/56;H01J29/84
主分类号
H01J29/56
代理机构
代理人
主权项
地址
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