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发明名称
Travelling wave electron discharge devices
摘要
申请公布号
GB788625(A)
申请公布日期
1958.01.02
申请号
GB19550034568
申请日期
1955.12.02
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
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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