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公开(公告)号：US2763804A
公开(公告)日：1956-09-18
申请号：US39537153
申请日：1953-12-01
Applicant: RCA CORP
Inventor： MORRELL ALBERT M
IPC: H01J29/70
CPC classification number: H01J29/705 , H01J2229/0046
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公开(公告)号：US2752520A
公开(公告)日：1956-06-26
申请号：US36404153
申请日：1953-06-25
Applicant: RCA CORP
Inventor： MORRELL ALBERT M
IPC: H01J29/70
CPC classification number: H01J29/702
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