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公开(公告)号：US3241431A
公开(公告)日：1966-03-22
申请号：US21151962
申请日：1962-07-23
Applicant: UNIV SOUTHERN ILLINOIS
Inventor： BRUTTEN EUGENE J , PUDIL WILLIAM L , HIDEO KOIKE , FALK ROBERT J
CPC classification number: G06K9/00067
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