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经营范围
发明名称
Perfectionnements aux tubes à rayons cathodiques
摘要
申请公布号
FR1062109(A)
申请公布日期
1954.04.20
申请号
FRD1062109
申请日期
1952.08.18
申请人
ELECTRIC AND MUSICAL INDUSTRIES LTD
发明人
分类号
H01J29/87
主分类号
H01J29/87
代理机构
代理人
主权项
地址
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