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经营范围
发明名称
Traveling-wave tube
摘要
申请公布号
US2853642(A)
申请公布日期
1958.09.23
申请号
US19550490088
申请日期
1955.02.23
申请人
HUGHES AIRCRAFT COMPANY
发明人
BIRDSALL CHARLES K.;FIELD LESTER M.
分类号
H01J23/00;H01J23/27
主分类号
H01J23/00
代理机构
代理人
主权项
地址
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