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公开(公告)号：US3287593A
公开(公告)日：1966-11-22
申请号：US15873761
申请日：1961-12-12
Applicant: CSF
Inventor： DANIEL CHARLES , SERGE VERON
CPC classification number: H01J63/08 , H01J17/00 , H01J29/385 , H01J29/481 , H01J2893/0064
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