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公开(公告)号：US3256458A
公开(公告)日：1966-06-14
申请号：US32210863
申请日：1963-11-07
Applicant: CSF
Inventor： LUCIEN JARASSE , JACQUES JOIRET
CPC classification number: H01J19/00 , H01J19/28 , H01J2893/0011 , H01J2893/0013 , H01J2893/0023
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