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发明名称
Electron discharge device
摘要
申请公布号
US2492618(A)
申请公布日期
1949.12.27
申请号
US19450583017
申请日期
1945.03.16
申请人
SYLVANIA ELECTRIC PRODUCTS, INC.
发明人
BOWIE ROBERT M.
分类号
H01J25/12
主分类号
H01J25/12
代理机构
代理人
主权项
地址
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