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经营范围
发明名称
Travelling wave tubes
摘要
申请公布号
GB945323(A)
申请公布日期
1963.12.23
申请号
GB19610011761
申请日期
1961.03.30
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
主权项
地址
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