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发明名称
HELICAL TRAVELING WAVE TUBE
摘要
申请公布号
JPH05251003(A)
申请公布日期
1993.09.28
申请号
JP19920083254
申请日期
1992.03.05
申请人
NEC CORP
发明人
TSUTAKI KUNIO
分类号
H01J23/28;H01J23/30;(IPC1-7):H01J23/28
主分类号
H01J23/28
代理机构
代理人
主权项
地址
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