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公开(公告)号:CA470550A
公开(公告)日:1951-01-02
申请号:CA470550D
Applicant: RCA CORP
Inventor: MALOFF IOURY GREGORY
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公开(公告)号:CA436253A
公开(公告)日:1946-08-06
申请号:CA436253D
Applicant: RCA CORP
Inventor: EPSTEIN DAVID WILLIAM , NICOLL FREDERICK HERMES , MALOFF IOURY GREGORY
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