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公开(公告)号：US5117160C1
公开(公告)日：2001-07-31
申请号：US54032690
申请日：1990-06-19
Applicant: NEC CORP , NIPPON DENKI HOME ELECTRONICS
Inventor： KONDA TSUTOMU , FUJIOKA SEIICHIRO , TAMURA SATOSHI , MATSUBARA OSAMU , YOSHIDA SHODO
CPC classification number: H01J65/046
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