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经营范围
发明名称
Electric radiation indicator
摘要
申请公布号
US1998334(A)
申请公布日期
1935.04.16
申请号
US19320626247
申请日期
1932.07.29
申请人
GENERAL ELECTRIC COMPANY
发明人
RUPP EMIL
分类号
H01J40/00
主分类号
H01J40/00
代理机构
代理人
主权项
地址
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