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发明名称
Electron discharge apparatus
摘要
申请公布号
US1941157(A)
申请公布日期
1933.12.26
申请号
US19280323902
申请日期
1928.12.05
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
SMITH CHARLES G.
分类号
H01J33/00
主分类号
H01J33/00
代理机构
代理人
主权项
地址
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