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公开(公告)号:US3020440A
公开(公告)日:1962-02-06
申请号:US82296759
申请日:1959-06-25
Applicant: RCA CORP
Inventor: CHANG KERN K N
IPC: H01J23/08
CPC classification number: H01J23/08
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公开(公告)号:US2704828A
公开(公告)日:1955-03-22
申请号:US32391352
申请日:1952-12-03
Applicant: RCA CORP
Inventor: CHANG KERN K N
IPC: H03C5/04
CPC classification number: H03C5/04
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