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公开(公告)号：US3415950A
公开(公告)日：1968-12-10
申请号：US44322765
申请日：1965-03-29
Applicant: IBM
Inventor： BARTZ MAURICE R , OLSON ROGER E , STOCKDALE NORMAN S
CPC classification number: G06K9/38 , G06K2209/01 , H03K5/082 , H04N1/403
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