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经营范围
发明名称
Severed travelling wave tube
摘要
申请公布号
GB969291(A)
申请公布日期
1964.09.09
申请号
GB19620047514
申请日期
1962.12.17
申请人
HUGHES AIRCRAFT COMPANY
发明人
分类号
H01J23/30
主分类号
H01J23/30
代理机构
代理人
主权项
地址
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