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经营范围
发明名称
Means for preventing undesired arc formation in electric discharge apparatus
摘要
申请公布号
GB407455(A)
申请公布日期
1934.03.22
申请号
GB19320031946
申请日期
1932.11.11
申请人
ALLMAENNA SVENSKA ELEKTRISKA AKTIEBOLAGET
发明人
分类号
H01J13/16;H01J13/48
主分类号
H01J13/16
代理机构
代理人
主权项
地址
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