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发明名称
Electron discharge device
摘要
申请公布号
US1871537(A)
申请公布日期
1932.08.16
申请号
US19250064074
申请日期
1925.10.22
申请人
WESTINGHOUSE LAMP COMPANY
发明人
LEDERER ERNEST ANTON
分类号
H01J19/40
主分类号
H01J19/40
代理机构
代理人
主权项
地址
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