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公开(公告)号：US3081376A
公开(公告)日：1963-03-12
申请号：US80107659
申请日：1959-03-23
Applicant: ZENITH RADIO CORP
Inventor： LOUGHLIN BERNARD D , ROSCHKE ERWIN M
IPC: H04N7/171
CPC classification number: H04N7/1713
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