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公开(公告)号:US2794120A
公开(公告)日:1957-05-28
申请号:US43620854
申请日:1954-06-11
Applicant: RCA CORP
Inventor: HANSELL GRANT E , JAY BRANDINGER
公开(公告)号:US2794120A
公开(公告)日:1957-05-28
申请号:US43620854
申请日:1954-06-11
Applicant: RCA CORP
Inventor: HANSELL GRANT E , JAY BRANDINGER