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公开(公告)号：US2918658A
公开(公告)日：1959-12-22
申请号：US56822856
申请日：1956-02-28
Applicant: BURROUGHS CORP
Inventor： HOBERG GEORGE G , LONERGAN WILLIAM R , THORNLEY ROBERT B , WILLIAMS ROBERT J , STEVENS DONALD L
IPC: G06K15/08
CPC classification number: G06K15/08
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