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经营范围
发明名称
Traveling wave tubes
摘要
申请公布号
US3046443(A)
申请公布日期
1962.07.24
申请号
US19580764364
申请日期
1958.09.30
申请人
RAYTHEON COMPANY
发明人
DENCH EDWARD C.
分类号
H01J25/42
主分类号
H01J25/42
代理机构
代理人
主权项
地址
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