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公开(公告)号：DE3062716D1
公开(公告)日：1983-05-19
申请号：DE3062716
申请日：1980-06-03
Applicant: IBM
Inventor： LIBBY EDWIN LANGFORD , MADDOX RANDALL ADRIAN , ROBERTS DOUGLAS JAMES
IPC: G03G15/041 , G03G15/052 , G03B27/50
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