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公开(公告)号:IT8123004D0
公开(公告)日:1981-07-17
申请号:IT2300481
申请日:1981-07-17
Applicant: RCA CORP
Inventor: JOHNSTON LOREN BAINUM
IPC: H04N5/68 , G09G1/20 , G09G3/30 , H04N3/12 , H01J