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发明名称
Improvements in or relating to coupling and holding devices for travelling wave tubes
摘要
申请公布号
GB821274(A)
申请公布日期
1959.10.07
申请号
GB19570012910
申请日期
1957.04.23
申请人
ENGLISH ELECTRIC VALVE COMPANY LIMITED
发明人
BRYANT FREDERICK JOHN
分类号
H01J23/50
主分类号
H01J23/50
代理机构
代理人
主权项
地址
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