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公开(公告)号：US2476646A
公开(公告)日：1949-07-19
申请号：US67038246
申请日：1946-05-17
Applicant: RCA CORP
Inventor： WARREN WILLIAM H , GREEN NORVAL H
IPC: H01J19/42
CPC classification number: H01J19/42 , H01J2893/0002
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公开(公告)号：US2427888A
公开(公告)日：1947-09-23
申请号：US59662245
申请日：1945-05-30
Applicant: RCA CORP
Inventor： WARREN WILLIAM H
IPC: H01J21/14
CPC classification number: H01J21/14 , H01J2893/0029
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