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经营范围
发明名称
Perfectionnements aux tubes électroniques à gaz
摘要
申请公布号
FR77578(E)
申请公布日期
1962.03.24
申请号
FR19600825013
申请日期
1960.04.22
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LTD.
发明人
分类号
H01J17/04;H01J17/54
主分类号
H01J17/04
代理机构
代理人
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地址
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