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发明名称
ELECTRON GUN HAVING ELECTRODE CUP IN CERAMIC CAVITY
摘要
申请公布号
US3453473(A)
申请公布日期
1969.07.01
申请号
USD3453473
申请日期
1968.01.02
申请人
HUGHES AIRCRAFT CO.
发明人
FREDERICK G. OESS
分类号
H01J29/48;(IPC1-7):H01J29/48
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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