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公开(公告)号：US3278211A
公开(公告)日：1966-10-11
申请号：US39275564
申请日：1964-08-28
Applicant: PHILIPS CORP
Inventor： GERARDUS BAAS , MARTIN TACKEN PETER JAN
CPC classification number: H01J5/32 , C03C29/00 , H01B17/305 , H01J5/40 , H01J2893/0035 , Y10T403/213 , Y10T403/473
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