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公开(公告)号：US2121360A
公开(公告)日：1938-06-21
申请号：US7136036
申请日：1936-03-28
Applicant: RCA CORP
Inventor： LOUIS MALTER , RAJCHMAN JAN A , RHEA GOODRICH ROBERT
IPC: H01J25/52
CPC classification number: H01J25/52
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公开(公告)号：US2117089A
公开(公告)日：1938-05-10
申请号：US7151336
申请日：1936-03-28
Applicant: RCA CORP
Inventor： RHEA GOODRICH ROBERT
IPC: H01J25/76
CPC classification number: H01J25/76
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