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发明名称
Electron discharge device
摘要
申请公布号
US2873403(A)
申请公布日期
1959.02.10
申请号
US19550479925
申请日期
1955.01.05
申请人
GEISLER JR WILSON S
发明人
JR. WILSON S. GEISLER,
分类号
H01J25/24
主分类号
H01J25/24
代理机构
代理人
主权项
地址
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