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发明名称
Electrode-cathode
摘要
申请公布号
US2212828(A)
申请公布日期
1940.08.27
申请号
US19380235707
申请日期
1938.10.19
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
EVANS GEORGE STARK
分类号
H01J17/06
主分类号
H01J17/06
代理机构
代理人
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