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公开(公告)号：US3340443A
公开(公告)日：1967-09-05
申请号：US36394064
申请日：1964-04-30
Applicant: PACKARD BELL ELECTRONICS CORP
Inventor： RIETH HAROLD F , GEORGE O'LEARY
IPC: H04N9/29
CPC classification number: H04N9/29 , H01J2229/0046
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