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发明名称
Secondary electron emitter
摘要
申请公布号
US2189972(A)
申请公布日期
1940.02.13
申请号
US19390268734
申请日期
1939.04.19
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
WARNECKE ROBERT;BRIOT ANDRE
分类号
G05D7/00;H01J1/32
主分类号
G05D7/00
代理机构
代理人
主权项
地址
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