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公开(公告)号：JP4134000B2
公开(公告)日：2008-08-13
申请号：JP2004314232
申请日：2004-10-28
Applicant: Necマイクロ波管株式会社
IPC: H01J23/06
CPC classification number: H01J23/065 , H01J3/024 , H01J2225/14
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