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经营范围
发明名称
RECTILINEAR BEAM MICROWAVE TUBE
摘要
申请公布号
JPH0475234(A)
申请公布日期
1992.03.10
申请号
JP19900188536
申请日期
1990.07.17
申请人
NEC CORP
发明人
TONEGAWA SATOSHI
分类号
H01J23/00;H01J23/30
主分类号
H01J23/00
代理机构
代理人
主权项
地址
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