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1.Optical apparatus for reading indicia appearing on a record medium 失效
Title translation: 用于读取记录介质上出现的标记的光学装置公开(公告)号:US3057552A
公开(公告)日:1962-10-09
申请号:US75501858
申请日:1958-08-14
Applicant: BURROUGHS CORP
Inventor: HANSTEIN JR WALTER , JONES RICHARD H
CPC classification number: G06K7/12