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经营范围
发明名称
Improvements in and relating to electric discharge devices
摘要
申请公布号
GB405460(A)
申请公布日期
1934.02.08
申请号
GB19330004136
申请日期
1933.02.10
申请人
INTERNATIONAL GENERAL ELECTRIC COMPANY INCORPORATED
发明人
分类号
H01J13/34;H01J13/48
主分类号
H01J13/34
代理机构
代理人
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地址
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