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经营范围
发明名称
Improvements in or relating to electron multipliers
摘要
申请公布号
GB495438(A)
申请公布日期
1938.11.11
申请号
GB19370013361
申请日期
1937.05.11
申请人
FARNSWORTH TELEVISION INCORPORATED
发明人
分类号
H01J43/18
主分类号
H01J43/18
代理机构
代理人
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