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发明名称
Electron emissive cathode
摘要
申请公布号
US2241362(A)
申请公布日期
1941.05.06
申请号
US19400321640
申请日期
1940.03.01
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
GUSTIN DANIEL S.;FREEMAN GEORGE A.
分类号
H01J61/073
主分类号
H01J61/073
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代理人
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地址
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