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公开(公告)号：US2366320A
公开(公告)日：1945-01-02
申请号：US45660742
申请日：1942-08-29
Applicant: RCA CORP
Inventor： ELSTON GEORGE F
IPC: H01J31/14
CPC classification number: H01J31/14
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公开(公告)号：US2181080A
公开(公告)日：1939-11-21
申请号：US19913838
申请日：1938-03-31
Applicant: RCA CORP
Inventor： ELSTON GEORGE F
IPC: H01J21/20
CPC classification number: H01J21/20 , H01J2893/003
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