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发明名称
Improvements in electric indicator circuits employing indicators of the cathode ray type
摘要
申请公布号
GB520655(A)
申请公布日期
1940.04.30
申请号
GB19380031160
申请日期
1938.10.27
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
H01J31/14
主分类号
H01J31/14
代理机构
代理人
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